Skills for Mathematics

C. High School

§111.31. Skills for Mathematics, Grades 9-12.

     The provisions of this written curriculum shall be implemented

     beginning September 1, 1997.

     

     


§111.32. Algebra I (One Credit).

(a)  Basic understandings.



     (1)  Foundation concepts for high school mathematics.

          As presented in Grades K-8, the basic

          understandings of number, operation, and

          quantitative reasoning; patterns, relationships,

          and algebraic thinking; geometry; measurement; and

          probability and statistics are essential

          foundations for all work in high school

          mathematics. Students will continue to build on

          this foundation as they expand their understanding

          through other mathematical experiences.

     

     (2)  Algebraic thinking and symbolic reasoning.

          Symbolic reasoning plays a critical role in

          algebra; symbols provide powerful ways to

          represent mathematical situations and to express

          generalizations. Students use symbols in a variety

          of ways to study relationships among quantities.

     

     (3)  Function concepts. Functions represent the

          systematic dependence of one quantity on another.

          Students use functions to represent and model

          problem situations and to analyze and interpret

          relationships.

     

     (4)  Relationship between equations and functions.

          Equations arise as a way of asking and answering

          questions involving functional relationships.

          Students work in many situations to set up

          equations and use a variety of methods to solve

          these equations.

     

     (5)  Tools for algebraic thinking. Techniques for

          working with functions and equations are essential

          in understanding underlying relationships.

          Students use a variety of representations

          (concrete, numerical, algorithmic, graphical),

          tools, and technology, including, but not limited

          to, powerful and accessible hand-held calculators

          and computers with graphing capabilities and model

          mathematical situations to solve meaningful

          problems.

     

     (6)  Underlying mathematical processes. Many processes

          underlie all content areas in mathematics. As they

          do mathematics, students continually use problem-

          solving, computation in problem-solving contexts,

          language and communication, connections within and

          outside mathematics, and reasoning, as well as

          multiple representations, applications and

          modeling, and justification and proof.

     

(b)  Foundations for functions: knowledge and skills and

     performance descriptions.



     (1)  The student understands that a function represents

          a dependence of one quantity on another and can be

          described in a variety of ways.

     

    Following are performance descriptions.

    

        (A)  The student describes independent and

             dependent quantities in functional

             relationships.

        

        (B)  The student gathers and records data, or uses

             data sets, to determine functional

             (systematic) relationships between quantities.

        

        (C)  The student describes functional relationships

             for given problem situations and writes

             equations or inequalities to answer questions

             arising from the situations.

        

        (D)  The student represents relationships among

             quantities using concrete models, tables,

             graphs, diagrams, verbal descriptions,

             equations, and inequalities.

        

        (E)  The student interprets and makes inferences

             from functional relationships.

        

     (2)  The student uses the properties and attributes of

          functions.

     

    Following are performance descriptions.

    

          (A)  The student identifies and sketches the general

               forms of linear (y = x) and quadratic (y = x2)

               parent functions.

        

        (B)  For a variety of situations, the student

             identifies the mathematical domains and ranges

             and determines reasonable domain and range

             values for given situations.

        

        (C)  The student interprets situations in terms of

             given graphs or creates situations that fit

             given graphs.

        

        (D)  In solving problems, the student collects and

             organizes data, makes and interprets

             scatterplots, and models, predicts, and makes

             decisions and critical judgments.

        

     (3)  The student understands how algebra can be used to

          express generalizations and recognizes and uses

          the power of symbols to represent situations.

     

    Following are performance descriptions.

    

        (A)  The student uses symbols to represent unknowns

             and variables.

        

        (B)  Given situations, the student looks for

             patterns and represents generalizations

             algebraically.

        

     (4)  The student understands the importance of the

          skills required to manipulate symbols in order to

          solve problems and uses the necessary algebraic

          skills required to simplify algebraic expressions

          and solve equations and inequalities in problem

          situations.

     

    Following are performance descriptions.

    

        (A)  The student finds specific function values,

             simplifies polynomial expressions, transforms

             and solves equations, and factors as necessary

             in problem situations.

        

        (B)  The student uses the commutative, associative,

             and distributive properties to simplify

             algebraic expressions.

        

(c) Linear functions: knowledge and skills and performance

    descriptions.



     (1)  The student understands that linear functions can

          be represented in different ways and translates

          among their various representations.

     

    Following are performance descriptions.

    

        (A)  The student determines whether or not given

             situations can be represented by linear

             functions.

        

        (B)  The student determines the domain and range

             values for which linear functions make sense

             for given situations.

        

        (C)  The student translates among and uses

             algebraic, tabular, graphical, or verbal

             descriptions of linear functions.

        

     (2)  The student understands the meaning of the slope

          and intercepts of linear functions and interprets

          and describes the effects of changes in parameters

          of linear functions in real-world and mathematical

          situations.

     

    Following are performance descriptions.

    

        (A)  The student develops the concept of slope as

             rate of change and determines slopes from

             graphs, tables, and algebraic representations.

        

        (B)  The student interprets the meaning of slope

             and intercepts in situations using data,

             symbolic representations, or graphs.

        

        (C)  The student investigates, describes, and

             predicts the effects of changes in m and b on

             the graph of y = mx + b.

        

        (D)  The student graphs and writes equations of

             lines given characteristics such as two

             points, a point and a slope, or a slope and

             y-intercept.

        

        (E)  The student determines the intercepts of

             linear functions from graphs, tables, and

             algebraic representations.

        

        (F)  The student interprets and predicts the

             effects of changing slope and y-intercept in

             applied situations.

        

        (G)  The student relates direct variation to linear

             functions and solves problems involving

             proportional change.

        

     (3)  The student formulates equations and inequalities

          based on linear functions, uses a variety of

          methods to solve them, and analyzes the solutions

          in terms of the situation.

     

    Following are performance descriptions.

    

        (A)  The student analyzes situations involving

             linear functions and formulates linear

             equations or inequalities to solve problems.

        

        (B)  The student investigates methods for solving

             linear equations and inequalities using

             concrete models, graphs, and the properties of

             equality, selects a method, and solves the

             equations and inequalities.

        

        (C)  For given contexts, the student interprets and

             determines the reasonableness of solutions to

             linear equations and inequalities.

        

     (4)  The student formulates systems of linear equations

          from problem situations, uses a variety of methods

          to solve them, and analyzes the solutions in terms

          of the situation.

     

    Following are performance descriptions.

    

        (A)  The student analyzes situations and formulates

             systems of linear equations to solve problems.

        

        (B)  The student solves systems of linear equations

             using concrete models, graphs, tables, and

             algebraic methods.

        

        (C)  For given contexts, the student interprets and

             determines the reasonableness of solutions to

             systems of linear equations.

        

(d) Quadratic and other nonlinear functions: knowledge and

    skills and performance descriptions.



     (1)  The student understands that the graphs of

          quadratic functions are affected by the parameters

          of the function and can interpret and describe the

          effects of changes in the parameters of quadratic

          functions.

     

    Following are performance descriptions.

    

        (A)  The student determines the domain and range

             values for which quadratic functions make

             sense for given situations.
        

        (B)  The student investigates, describes, and

             predicts the effects of changes in a on the

             graph of y = ax2.
        

        (C)  The student investigates, describes, and

             predicts the effects of changes in c on the

             graph of y = x2 + c.
        

        (D)  For problem situations, the student analyzes

             graphs of quadratic functions and draws

             conclusions.
	(E)  The student uses factorization, expanded notation 
             or completing the square to rearrange a quadratic  
	     expression.     


     (2)  The student understands there is more than one way

          to solve a quadratic equation and solves them

          using appropriate methods.

     

    Following are performance descriptions.

    

        (A)  The student solves quadratic equations using

             concrete models, tables, graphs, and algebraic

             methods.

        

        (B)  The student relates the solutions of quadratic

             equations to the roots of their functions.

        

     (3)  The student understands there are situations

          modeled by functions that are neither linear nor

          quadratic and models the situations.

     

    Following are performance descriptions.

    

        (A)  The student uses patterns to generate the laws

             of exponents and applies them in problem-

             solving situations.

        

        (B)  The student analyzes data and represents

             situations involving inverse variation using

             concrete models, tables, graphs, or algebraic

             methods.

        

        (C)  The student analyzes data and represents

             situations involving exponential growth and

             decay using concrete models, tables, graphs,

             or algebraic methods.

        


§111.33. Algebra II (One-Half to One Credit).

(a)  Basic understandings.



     (1)  Foundation concepts for high school mathematics.

          As presented in Grades K-8, the basic

          understandings of number, operation, and

          quantitative reasoning; patterns, relationships,

          and algebraic thinking; geometry; measurement; and

          probability and statistics are essential

          foundations for all work in high school

          mathematics. Students continue to build on this

          foundation as they expand their understanding

          through other mathematical experiences.

     

     (2)  Algebraic thinking and symbolic reasoning.

          Symbolic reasoning plays a critical role in

          algebra; symbols provide powerful ways to

          represent mathematical situations and to express

          generalizations. Students study algebraic concepts

          and the relationships among them to better

          understand the structure of algebra.

     

     (3)  Functions, equations, and their relationship. The

          study of functions, equations, and their

          relationship is central to all of mathematics.

          Students perceive functions and equations as means

          for analyzing and understanding a broad variety of

          relationships and as a useful tool for expressing

          generalizations.

     

     (4)  Relationship between algebra and geometry.

          Equations and functions are algebraic tools that

          can be used to represent geometric curves and

          figures; similarly, geometric figures can

          illustrate algebraic relationships. Students

          perceive the connections between algebra and

          geometry and use the tools of one to help solve

          problems in the other.

     

     (5)  Tools for algebraic thinking. Techniques for

          working with functions and equations are essential

          in understanding underlying relationships.

          Students use a variety of representations

          (concrete, numerical, algorithmic, graphical),

          tools, and technology, including, but not limited

          to, powerful and accessible hand-held calculators

          and computers with graphing capabilities and model

          mathematical situations to solve meaningful

          problems.

     

     (6)  Underlying mathematical processes. Many processes

          underlie all content areas in mathematics. As they

          do mathematics, students continually use problem-

          solving, computation in problem-solving contexts,

          language and communication, connections within and

          outside mathematics, and reasoning, as well as

          multiple representations, applications and

          modeling, and justification and proof.

     

(b)  Foundations for functions: knowledge and skills and

     performance descriptions.



     (1)  The student uses properties and attributes of

          functions and applies functions to problem

          situations.

     

    Following are performance descriptions.

    

        (A)  For a variety of situations, the student

             identifies the mathematical domains and ranges

             and determines reasonable domain and range

             values for given situations.

        

        (B)  In solving problems, the student collects data

             and records results, organizes the data, makes

             scatterplots, fits the curves to the

             appropriate parent function, interprets the

             results, and proceeds to model, predict, and

             make decisions and critical judgments.

        

     (2)  The student understands the importance of the

          skills required to manipulate symbols in order to

          solve problems and uses the necessary algebraic

          skills required to simplify algebraic expressions

          and solve equations and inequalities in problem

          situations.

     

    Following are performance descriptions.

    

        (A)  The student uses tools including matrices,

             factoring, and properties of exponents to

             simplify expressions and transform and solve

             equations.

        

        (B)  The student uses complex numbers to describe

             the solutions of quadratic equations.

        

        (C)  The student connects the function notation of

             y = and ƒ(x) =.

        

     (3)  The student formulates systems of equations and

          inequalities from problem situations, uses a

          variety of methods to solve them, and analyzes the

          solutions in terms of the situations.

     

    Following are performance descriptions.

    

        (A)  The student analyzes situations and formulates

             systems of equations or inequalities in two or

             more unknowns to solve problems.

        

        (B)  The student uses algebraic methods, graphs,

             tables, or matrices, to solve systems of

             equations or inequalities.

        

        (C)  For given contexts, the student interprets and

             determines the reasonableness of solutions to

             systems of equations or inequalities.

        

(c) Algebra and geometry: knowledge and skills and

    performance descriptions.



     (1)  The student connects algebraic and geometric

          representations of functions.

     

    Following are performance descriptions.

    

          (A)  The student identifies and sketches graphs of

               parent functions, including linear (y = x),

               quadratic (y = x2), square root (y = Öx),

               inverse (y = 1/x), exponential (y = ax), and logarithmic

               (y = logax) functions.

        

        (B)  The student extends parent functions with

             parameters such as m in y = mx and describes

             parameter changes on the graph of parent

             functions.

        

        (C)  The student recognizes inverse relationships

             between various functions.

        

     (2)  The student knows the relationship between the

          geometric and algebraic descriptions of conic

          sections.

     

    Following are performance descriptions.

    

        (A)  The student describes a conic section as the

             intersection of a plane and a cone.

        

        (B)  In order to sketch graphs of conic sections,

             the student relates simple parameter changes

             in the equation to corresponding changes in

             the graph.

        

        (C)  The student identifies symmetries from graphs

             of conic sections.

        

        (D)  The student identifies the conic section from

             a given equation.

        

        (E)  The student uses the method of completing the

             square.

        

(d) Quadratic and square root functions: knowledge and

    skills and performance descriptions.



     (1)  The student understands that quadratic functions

          can be represented in different ways and

          translates among their various representations.

     

    Following are performance descriptions.

    

        (A)  For given contexts, the student determines the

             reasonable domain and range values of

             quadratic functions, as well as interprets and

             determines the reasonableness of solutions to

             quadratic equations and inequalities.

        

        (B)  The student relates representations of

             quadratic functions, such as algebraic,

             tabular, graphical, and verbal descriptions.

        

        (C)  The student determines a quadratic function

             from its roots or a graph.

        

     (2)  The student interprets and describes the effects

          of changes in the parameters of quadratic

          functions in applied and mathematical situations.

     

    Following are performance descriptions.

    

          (A)  The student uses characteristics of the quadratic

               parent function to sketch the related graphs and

               connects between the y = ax2 + bx + c and the y =

               a(x - h)2 + k symbolic representations of

               quadratic functions.

        

          (B)  The student uses the parent function to

               investigate, describe, and predict the effects of

               changes in a, h, and k on the graphs of y = a(x -

               h)2 + k form of a function in applied and purely

               mathematical situations.

        

     (3)  The student formulates equations and inequalities

          based on quadratic functions, uses a variety of

          methods to solve them, and analyzes the solutions

          in terms of the situation.

     

    Following are performance descriptions.

    

        (A)  The student analyzes situations involving

             quadratic functions and formulates quadratic

             equations or inequalities to solve problems.

        

        (B)  The student analyzes and interprets the

             solutions of quadratic equations using

             discriminants and solves quadratic equations

             using the quadratic formula.

        

        (C)  The student compares and translates between

             algebraic and graphical solutions of quadratic

             equations.

        

        (D)  The student solves quadratic equations and

             inequalities.

        

     (4)  The student formulates equations and inequalities

          based on square root functions, uses a variety of

          methods to solve them, and analyzes the solutions

          in terms of the situation.

     

    Following are performance descriptions.

    

        (A)  The student uses the parent function to

             investigate, describe, and predict the effects

             of parameter changes on the graphs of square

             root functions and describes limitations on

             the domains and ranges.

        

        (B)  The student relates representations of square

             root functions, such as algebraic, tabular,

             graphical, and verbal descriptions.

        

        (C)  For given contexts, the student determines the

             reasonable domain and range values of square

             root functions, as well as interprets and

             determines the reasonableness of solutions to

             square root equations and inequalities.

        

        (D)  The student solves square root equations and

             inequalities using graphs, tables, and

             algebraic methods.

        

        (E)  The student analyzes situations modeled by

             square root functions, formulates equations or

             inequalities, selects a method, and solves

             problems.

        

        (F)  The student expresses inverses of quadratic

             functions using square root functions.

        

    

    (e)  Rational functions: knowledge and skills and

    performance descriptions. The student formulates

    equations and inequalities based on rational functions,

    uses a variety of methods to solve them, and analyzes

    the solutions in terms of the situation.

    

    

 

 Following are performance descriptions.

 

 

          (1)  The student uses quotients to describe the

               graphs of rational functions, describes

               limitations on the domains and ranges, and

               examines asymptotic behavior.

          

          (2)  The student analyzes various representations

               of rational functions with respect to problem

               situations.

          

          (3)  For given contexts, the student determines

               the reasonable domain and range values of

               rational functions, as well as interprets and

               determines the reasonableness of solutions to

               rational equations and inequalities.

          

          (4)  The student solves rational equations and

               inequalities using graphs, tables, and

               algebraic methods.

          

          (5)  The student analyzes a situation modeled by a

               rational function, formulates an equation or

               inequality composed of a linear or quadratic

               function, and solves the problem.

          

          (6)  The student uses direct and inverse variation

               functions as models to make predictions in

               problem situations.

          

    

    (f)  Exponential and logarithmic functions: knowledge

    and skills and performance descriptions. The student

    formulates equations and inequalities based on

    exponential and logarithmic functions, uses a variety

    of methods to solve them, and analyzes the solutions in

    terms of the situation.

    

    

 

 Following are performance descriptions.

 

 

          (1)  The student develops the definition of

               logarithms by exploring and describing the

               relationship between exponential functions

               and their inverses.

          

          (2)  The student uses the parent functions to

               investigate, describe, and predict the

               effects of parameter changes on the graphs of

               exponential and logarithmic functions,

               describes limitations on the domains and

               ranges, and examines asymptotic behavior.

          

          (3)  For given contexts, the student determines

               the reasonable domain and range values of

               exponential and logarithmic functions, as

               well as interprets and determines the

               reasonableness of solutions to exponential

               and logarithmic equations and inequalities.

          

          (4)  The student solves exponential and

               logarithmic equations and inequalities using

               graphs, tables, and algebraic methods.

          

          (5)  The student analyzes a situation modeled by

               an exponential function, formulates an

               equation or inequality, and solves the

               problem.

          


§111.34. Geometry (One Credit).

(a)  Basic understandings.



     (1)  Foundation concepts for high school mathematics.

          As presented in Grades K-8, the basic

          understandings of number, operation, and

          quantitative reasoning; patterns, relationships,

          and algebraic thinking; geometry; measurement; and

          probability and statistics are essential

          foundations for all work in high school

          mathematics. Students continue to build on this

          foundation as they expand their understanding

          through other mathematical experiences.

     

     (2)  Geometric thinking and spatial reasoning. Spatial

          reasoning plays a critical role in geometry;

          shapes and figures provide powerful ways to

          represent mathematical situations and to express

          generalizations about space and spatial

          relationships. Students use geometric thinking to

          understand mathematical concepts and the

          relationships among them.

     

     (3)  Geometric figures and their properties. Geometry

          consists of the study of geometric figures of

          zero, one, two, and three dimensions and the

          relationships among them. Students study

          properties and relationships having to do with

          size, shape, location, direction, and orientation

          of these figures.

     

     (4)  The relationship between geometry, other

          mathematics, and other disciplines. Geometry can

          be used to model and represent many mathematical

          and real-world situations. Students perceive the

          connection between geometry and the real and

          mathematical worlds and use geometric ideas,

          relationships, and properties to solve problems.

     

     (5)  Tools for geometric thinking. Techniques for

          working with spatial figures and their properties

          are essential in understanding underlying

          relationships. Students use a variety of

          representations (concrete, pictorial, algebraic,

          and coordinate), tools, and technology, including,

          but not limited to, powerful and accessible hand-

          held calculators and computers with graphing

          capabilities to solve meaningful problems by

          representing figures, transforming figures,

          analyzing relationships, and proving things about

          them.

     

     (6)  Underlying mathematical processes. Many processes

          underlie all content areas in mathematics. As they

          do mathematics, students continually use problem-

          solving, computation in problem-solving contexts,

          language and communication, connections within and

          outside mathematics, and reasoning, as well as

          multiple representations, applications and

          modeling, and justification and proof.

     

(b)  Geometric structure: knowledge and skills and

     performance descriptions.



     (1)  The student understands the structure of, and

          relationships within, an axiomatic system.

     

    Following are performance descriptions.

    

        (A)  The student develops an awareness of the

             structure of a mathematical system, connecting

             definitions, postulates, logical reasoning,

             and theorems.

        

        (B)  Through the historical development of

             geometric systems, the student recognizes that

             mathematics is developed for a variety of

             purposes.

        

        (C)  The student compares and contrasts the

             structures and implications of Euclidean and

             non-Euclidean geometries.

        

     (2)  The student analyzes geometric relationships in

          order to make and verify conjectures.

     

    Following are performance descriptions.

    

        (A)  The student uses constructions to explore

             attributes of geometric figures and to make

             conjectures about geometric relationships.

        

        (B)  The student makes and verifies conjectures

             about angles, lines, polygons, circles, and

             three-dimensional figures, choosing from a

             variety of approaches such as coordinate,

             transformational, or axiomatic.

        

     (3)  The student understands the importance of logical

          reasoning, justification, and proof in

          mathematics.

     

 

 Following are performance descriptions.

 

 

        (A)  The student determines if the converse of a

             conditional statement is true or false.

        

        (B)  The student constructs and justifies

             statements about geometric figures and their

             properties.

        

        (C)  The student demonstrates what it means to

             prove mathematically that statements are true.

        

        (D)  The student uses inductive reasoning to

             formulate a conjecture.

        

        (E)  The student uses deductive reasoning to prove

             a statement.

        

     (4)  The student uses a variety of representations to

          describe geometric relationships and solve

          problems.

     

 

 Following is a performance description. The student

 selects an appropriate representation (concrete,

 pictorial, graphical, verbal, or symbolic) in order to

 solve problems.

 

 

(c) Geometric patterns: knowledge and skills and

    performance descriptions.



    

    The student identifies, analyzes, and describes

    patterns that emerge from two- and three-dimensional

    geometric figures.

    

    

 

 Following are performance descriptions.

 

 

          (1)  The student uses numeric and geometric

               patterns to make generalizations about

               geometric properties, including properties of

               polygons, ratios in similar figures and

               solids, and angle relationships in polygons

               and circles.

          

          (2)  The student uses properties of

               transformations and their compositions to

               make connections between mathematics and the

               real world in applications such as

               tessellations or fractals.

          

          (3)  The student identifies and applies patterns

               from right triangles to solve problems,

               including special right triangles (45-45-90

               and 30-60-90) and triangles whose sides are

               Pythagorean triples.

          

(d) Dimensionality and the geometry of location: knowledge

    and skills and performance descriptions.



     (1)  The student analyzes the relationship between

          three-dimensional objects and related two-

          dimensional representations and uses these

          representations to solve problems.

     

    Following are performance descriptions.

    

        (A)  The student describes, and draws cross

             sections and other slices of three-dimensional

             objects.

        

        (B)  The student uses nets to represent and

             construct three-dimensional objects.

        

        (C)  The student uses top, front, side, and corner

             views of three-dimensional objects to create

             accurate and complete representations and

             solve problems.

        

     (2)  The student understands that coordinate systems

          provide convenient and efficient ways of

          representing geometric figures and uses them

          accordingly.

     

    Following are performance descriptions.

    

        (A)  The student uses one- and two-dimensional

             coordinate systems to represent points, lines,

             line segments, and figures.

        

        (B)  The student uses slopes and equations of lines

             to investigate geometric relationships,

             including parallel lines, perpendicular lines,

             and special segments of triangles and other

             polygons.

        

        (C)  The student develops and uses formulas

             including distance and midpoint.

        

(e) Congruence and the geometry of size: knowledge and


    skills and performance descriptions.



     (1)  The student extends measurement concepts to find

          area, perimeter, and volume in problem situations.

     

    Following are performance descriptions.

    

        (A)  The student finds areas of regular polygons

             and composite figures.

        

        (B)  The student finds areas of sectors and arc

             lengths of circles using proportional

             reasoning.

        

        (C)  The student develops, extends, and uses the

             Pythagorean Theorem.

        

        (D)  The student finds surface areas and volumes of

             prisms, pyramids, spheres, cones, and

             cylinders in problem situations.

        

     (2)  The student analyzes properties and describes

          relationships in geometric figures.

     

    Following are performance descriptions.

    

        (A)  Based on explorations and using concrete

             models, the student formulates and tests

             conjectures about the properties of parallel

             and perpendicular lines.

        

        (B)  Based on explorations and using concrete

             models, the student formulates and tests

             conjectures about the properties and

             attributes of polygons and their component

             parts.

        

        (C)  Based on explorations and using concrete

             models, the student formulates and tests

             conjectures about the properties and

             attributes of circles and the lines that

             intersect them.

        

        (D)  The student analyzes the characteristics of

             three-dimensional figures and their component

             parts.

        

     (3)  The student applies the concept of congruence to

          justify properties of figures and solve problems.

     

    Following are performance descriptions.

    

        (A)  The student uses congruence transformations to

             make conjectures and justify properties of

             geometric figures.

        

        (B)  The student justifies and applies triangle

             congruence relationships.

        

    

    (f)  Similarity and the geometry of shape: knowledge

    and skills and performance descriptions. The student

    applies the concepts of similarity to justify

    properties of figures and solve problems.

    

    

 

 Following are performance descriptions.

 

 

          (1)  The student uses similarity properties and

               transformations to explore and justify

               conjectures about geometric figures.

          

          (2)  The student uses ratios to solve problems

               involving similar figures.

          

          (3)  In a variety of ways, the student develops,

               applies, and justifies triangle similarity

               relationships, such as right triangle ratios,

               trigonometric ratios, and Pythagorean

               triples.

          

          (4)  The student describes the effect on

               perimeter, area, and volume when length,

               width, or height of a three-dimensional solid

               is changed and applies this idea in solving

               problems.

          


§111.35. Precalculus (One-Half to One Credit).

(a)  General requirements. The provisions of this section

     shall be implemented beginning September 1, 1998, and

     at that time shall supersede §75.63(bb) of this title

     (relating to Mathematics). Students can be awarded one-

     half to one credit for successful completion of this

     course. Recommended prerequisites: Algebra II,

     Geometry.



(b)  Introduction.



     (1)  In Precalculus, students continue to build on the

          K-8, Algebra I, Algebra II, and Geometry

          foundations as they expand their understanding

          through other mathematical experiences. Students

          use symbolic reasoning and analytical methods to

          represent mathematical situations, to express

          generalizations, and to study mathematical

          concepts and the relationships among them.

          Students use functions, equations, and limits as

          useful tools for expressing generalizations and as

          means for analyzing and understanding a broad

          variety of mathematical relationships. Students

          also use functions as well as symbolic reasoning

          to represent and connect ideas in geometry,

          probability, statistics, trigonometry, and

          calculus and to model physical situations.

          Students use a variety of representations

          (concrete, numerical, algorithmic, graphical),

          tools, and technology to model functions and

          equations and solve real-life problems.

     

     (2)  As students do mathematics, they continually use

          problem-solving, language and communication,

          connections within and outside mathematics, and

          reasoning. Students also use multiple

          representations, applications and modeling,

          justification and proof, and computation in

          problem-solving contexts.

     

(c)  Knowledge and skills.



    (1) The student defines functions, describes

        characteristics of functions, and translates among

        verbal, numerical, graphical, and symbolic

        representations of functions, including polynomial,

        rational, radical, exponential, logarithmic,

        trigonometric, and piecewise-defined functions. The

        student is expected to:

    

          (A)  describe parent functions symbolically and

               graphically, including y = xn, y = ln x, 

               y =loga x, y = 1/x, y = ex, 

               y = ax, y = sin x, etc.;

        

        (B)  determine the domain and range of functions

             using graphs, tables, and symbols;

        

        (C)  describe symmetry of graphs of even and odd

             functions;

        

        (D)  recognize and use connections among

             significant points of a function (roots,

             maximum points, and minimum points), the graph

             of a function, and the symbolic representation

             of a function; and

        

        (E)  investigate continuity, end behavior, vertical

             and horizontal asymptotes, and limits and

             connect these characteristics to the graph of

             a function.

        

    (2) The student interprets the meaning of the symbolic

        representations of functions and operations on

        functions within a context. The student is expected

        to:

    

          (A)  apply basic transformations, including

               a•ƒ(x), ƒ(x) + d, ƒ(x - c), ƒ(b•x), |ƒ(x)|,

               ƒ(|x|), to the parent functions;

        

        (B)  perform operations including composition on

             functions, find inverses, and describe these

             procedures and results verbally, numerically,

             symbolically, and graphically; and

        

        (C)  investigate identities graphically and verify

             them symbolically, including logarithmic

             properties, trigonometric identities, and

             exponential properties.

        

    (3) The student uses functions and their properties to

        model and solve real-life problems. The student is

        expected to:

    

        (A)  use functions such as logarithmic,

             exponential, trigonometric, polynomial, etc.

             to model real-life data;

        

        (B)  use regression to determine a function to

             model real-life data;

        

        (C)  use properties of functions to analyze and

             solve problems and make predictions; and

        

        (D)  solve problems from physical situations using


             trigonometry, including the use of Law of

             Sines, Law of Cosines, and area formulas.

        

    (4) The student uses sequences and series to represent,

        analyze, and solve real-life problems. The student

        is expected to:

    

        (A)  represent patterns using arithmetic and

             geometric sequences and series;

        

        (B)  use arithmetic, geometric, and other sequences

             and series to solve real-life problems;

        

        (C)  describe limits of sequences and apply their

             properties to investigate convergent and

             divergent series; and

        

        (D)  apply sequences and series to solve problems

             including sums and binomial expansion.

        

    (5) The student uses conic sections, their properties,

        and parametric representations to model physical

        situations. The student is expected to:

    

        (A)  use conic sections to model motion, such as

             the graph of velocity vs. position of a

             pendulum and motions of planets;

        

        (B)  use properties of conic sections to describe

             physical phenomena such as the reflective

             properties of light and sound;

        

        (C)  convert between parametric and rectangular

             forms of functions and equations to graph

             them; and

        

        (D)  use parametric functions to simulate problems

             involving motion.

        

    (6) The student uses vectors to model physical

        situations. The student is expected to:

    

        (A)  use the concept of vectors to model situations

             defined by magnitude and direction; and

        

        (B)  analyze and solve vector problems generated by

             real-life situations.

        


§111.36. Mathematical Models with Applications (One-Half to One Credit).

(a)  General requirements. The provisions of this section

     shall be implemented beginning September 1, 1998.

     Students can be awarded one-half to one credit for

     successful completion of this course. Recommended

     prerequisite: Algebra I.



(b)  Introduction.



     (1)  In Mathematical Models with Applications, students

          continue to build on the K-8 and Algebra I

          foundations as they expand their understanding

          through other mathematical experiences. Students

          use algebraic, graphical, and geometric reasoning

          to recognize patterns and structure, to model

          information, and to solve problems from various

          disciplines. Students use mathematical methods to

          model and solve real-life applied problems

          involving money, data, chance, patterns, music,

          design, and science. Students use mathematical

          models from algebra, geometry, probability, and

          statistics and connections among these to solve

          problems from a wide variety of advanced

          applications in both mathematical and

          nonmathematical situations. Students use a variety

          of representations (concrete, numerical,

          algorithmic, graphical), tools, and technology to

          link modeling techniques and purely mathematical

          concepts and to solve applied problems.

     

     (2)  As students do mathematics, they continually use

          problem-solving, language and communication,

          connections within and outside mathematics, and

          reasoning. Students also use multiple

          representations, applications and modeling,

          justification and proof, and computation in

          problem-solving contexts.

     

(c)  Knowledge and skills.



    (1) The student uses a variety of strategies and

        approaches to solve both routine and non-routine

        problems. The student is expected to:

    

        (A)  compare and analyze various methods for

             solving a real-life problem;

        

        (B)  use multiple approaches (algebraic, graphical,

             and geometric methods) to solve problems from

             a variety of disciplines; and

        

        (C)  select a method to solve a problem, defend the

             method, and justify the reasonableness of the

             results.

        

    (2) The student uses graphical and numerical techniques

        to study patterns and analyze data. The student is

        expected to:

    

        (A)  interpret information from various graphs,

             including line graphs, bar graphs, circle

             graphs, histograms, and scatterplots to draw

             conclusions from the data;

        

        (B)  analyze numerical data using measures of

             central tendency, variability, and correlation

             in order to make inferences;

        

        (C)  analyze graphs from journals, newspapers, and

             other sources to determine the validity of

             stated arguments; and

        

        (D)  use regression methods available through

             technology to describe various models for data

             such as linear, quadratic, exponential, etc.,

             select the most appropriate model, and use the

             model to interpret information.

        

    (3) The student develops and implements a plan for

        collecting and analyzing data in order to make

        decisions. The student is expected to:

    

        (A)  formulate a meaningful question, determine the

             data needed to answer the question, gather the

             appropriate data, analyze the data, and draw

             reasonable conclusions;

        

        (B)  communicate methods used, analysis conducted,

             and conclusions drawn for a data-analysis

             project by written report, visual display,

             oral report, or multi-media presentation; and

        

        (C)  determine the appropriateness of a model for

             making predictions from a given set of data.

        

    (4) The student uses probability models to describe

        everyday situations involving chance. The student

        is expected to:

    

        (A)  compare theoretical and empirical probability;

             and

        

        (B)  use experiments to determine the

             reasonableness of a theoretical model such as

             binomial, geometric, etc.

        

    (5) The student uses functional relationships to solve

        problems related to personal income. The student is

        expected to:

    

        (A)  use rates, linear functions, and direct

             variation to solve problems involving personal

             finance and budgeting, including compensations

             and deductions;

        

        (B)  solve problems involving personal taxes; and

        

        (C)  analyze data to make decisions about banking.

        

    (6) The student uses algebraic formulas, graphs, and

        amortization models to solve problems involving

        credit. The student is expected to:

    

        (A)  analyze methods of payment available in retail

             purchasing and compare relative advantages and

             disadvantages of each option;

        

        (B)  use amortization models to investigate home

             financing and compare buying and renting a

             home; and

        

        (C)  use amortization models to investigate

             automobile financing and compare buying and

             leasing a vehicle.

        

    (7) The student uses algebraic formulas, numerical

        techniques, and graphs to solve problems related to

        financial planning. The student is expected to:

    

        (A)  analyze types of savings options involving

             simple and compound interest and compare

             relative advantages of these options;

        

        (B)  analyze and compare coverage options and rates

             in insurance; and

        

        (C)  investigate and compare investment options

             including stocks, bonds, annuities, and

             retirement plans.

        

    (8) The student uses algebraic and geometric models to

        describe situations and solve problems. The student

        is expected to:

    

        (A)  use geometric models available through

             technology to model growth and decay in areas

             such as population, biology, and ecology;

        

        (B)  use trigonometric ratios and functions

             available through technology to calculate

             distances and model periodic motion; and

        

        (C)  use direct and inverse variation to describe

             physical laws such as Hook's, Newton's, and

             Boyle's laws.

        

    (9) The student uses algebraic and geometric models to

        represent patterns and structures. The student is

        expected to:

    

        (A)  use geometric transformations, symmetry, and

             perspective drawings to describe mathematical

             patterns and structure in art and

             architecture; and

        

        (B)  use geometric transformations, proportions,

             and periodic motion to describe mathematical

             patterns and structure in music.

        

.