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# Texas TEKS Standards Ninth Grade Mathematics resources

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Algebra I (One Credit).

(AI.1) Foundations for functions. The student understands that a function represents a dependence of one quantity on another and can be described in a variety of ways. The student is expected to:

AI.1 (B) Gather and record data and use data sets to determine functional relationships between quantities.

Quiz, Flash Cards, Worksheet, Game & Study Guide Functions

AI.1 (C) Describe functional relationships for given problem situations and write equations or inequalities to answer questions arising from the situations.

Quiz, Flash Cards, Worksheet, Game & Study Guide Equations and inequalities

Quiz, Flash Cards, Worksheet, Game & Study Guide Solving linear equations

(AI.11) Quadratic and other nonlinear functions. The student understands there are situations modeled by functions that are neither linear nor quadratic and models the situations. The student is expected to:

AI.11 (A) Use patterns to generate the laws of exponents and apply them in problem-solving situations.

Quiz, Flash Cards, Worksheet, Game & Study Guide Polynomials and Exponents

AI.11 (B) Analyze data and represent situations involving inverse variation using concrete models, tables, graphs, or algebraic methods.

Quiz, Flash Cards, Worksheet, Game & Study Guide Functions

(AI.2) Foundations for functions. The student uses the properties and attributes of functions. The student is expected to:

AI.2 (D) Collect and organize data, make and interpret scatterplots (including recognizing positive, negative, or no correlation for data approximating linear situations), and model, predict, and make decisions and critical judgments in problem situations.

Flip Charts Math Grade 8

Flip Charts Organizing & Displaying Data

Quiz, Flash Cards, Worksheet, Game & Study Guide Collecting and describing data

Quiz, Flash Cards, Worksheet, Game & Study Guide Displaying data

Quiz, Flash Cards, Worksheet, Game & Study Guide Experimental Probability

Quiz, Flash Cards, Worksheet, Game & Study Guide Using graphs to analyze data

(AI.3) Foundations for functions. The student understands how algebra can be used to express generalizations and recognizes and uses the power of symbols to represent situations. The student is expected to:

AI.3 (A) Use symbols to represent unknowns and variables.

Flip Charts Algebra Skills

Flip Charts Applying Percents

Flip Charts Introduction to Functions

Flip Charts Math Grade 8

Flip Charts Ratios, Rates & Proportions

Flip Charts Systems of Equations

Flip Charts Systems of Equations

Quiz, Flash Cards, Worksheet, Game & Study Guide Solving equations and inequalities

AI.3 (B) Look for patterns and represent generalizations algebraically.

Flip Charts Arithmetic & Sequences

Flip Charts Circle Around

Flip Charts Math Grade 8

Quiz, Flash Cards, Worksheet, Game & Study Guide Sequences

(AI.4) Foundations for functions. 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. The student is expected to:

AI.4 (B) Use the commutative, associative, and distributive properties to simplify algebraic expressions.

Flip Charts Algebra Skills

Flip Charts Arithmetic & Sequences

Flip Charts Circle Around

Flip Charts Introduction to Functions

Flip Charts Math Grade 8

Flip Charts Systems of Equations

Flip Charts Systems of Equations

Quiz, Flash Cards, Worksheet, Game & Study Guide Equations and inequalities

Quiz, Flash Cards, Worksheet, Game & Study Guide Functions

Quiz, Flash Cards, Worksheet, Game & Study Guide Linear equations

Quiz, Flash Cards, Worksheet, Game & Study Guide Linear relationships

Quiz, Flash Cards, Worksheet, Game & Study Guide Polynomials and Exponents

Quiz, Flash Cards, Worksheet, Game & Study Guide Sequences

Quiz, Flash Cards, Worksheet, Game & Study Guide Solving equations and inequalities

Quiz, Flash Cards, Worksheet, Game & Study Guide Solving linear equations

Quiz, Flash Cards, Worksheet, Game & Study Guide Using graphs to analyze data

(AI.6) Linear functions. The student understands the meaning of the slope and intercepts of the graphs of linear functions and zeros of linear functions and interprets and describes the effects of changes in parameters of linear functions in real-world and mathematical situations. The student is expected to:

AI.6 (A) Develop the concept of slope as rate of change and determine slopes from graphs, tables, and algebraic representations.

Quiz, Flash Cards, Worksheet, Game & Study Guide Linear equations

AI.6 (D) Graph and write equations of lines given characteristics such as two points, a point and a slope, or a slope and y-intercept.

Quiz, Flash Cards, Worksheet, Game & Study Guide Linear equations

AI.6 (E) Determine the intercepts of the graphs of linear functions and zeros of linear functions from graphs, tables, and algebraic representations.

Quiz, Flash Cards, Worksheet, Game & Study Guide Linear equations

AI.6 (G) Relate direct variation to linear functions and solve problems involving proportional change.

Flip Charts Applying Percents

Flip Charts Math Grade 8

Flip Charts Ratios, Rates & Proportions

Quiz, Flash Cards, Worksheet, Game & Study Guide Linear relationships

Quiz, Flash Cards, Worksheet, Game & Study Guide Numbers and percents

Quiz, Flash Cards, Worksheet, Game & Study Guide Ratios, proportions and percents

Quiz, Flash Cards, Worksheet, Game & Study Guide Similarity and scale

(AI.7) Linear functions. 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. The student is expected to:

AI.7 (B) Investigate methods for solving linear equations and inequalities using concrete models, graphs, and the properties of equality, select a method, and solve the equations and inequalities.

Flip Charts Math Grade 8

Flip Charts Ratios, Rates & Proportions

Quiz, Flash Cards, Worksheet, Game & Study Guide Equations and inequalities

Quiz, Flash Cards, Worksheet, Game & Study Guide Integer operations

Quiz, Flash Cards, Worksheet, Game & Study Guide Linear relationships

Quiz, Flash Cards, Worksheet, Game & Study Guide Rational numbers and operations

Quiz, Flash Cards, Worksheet, Game & Study Guide Solving equations and inequalities

Quiz, Flash Cards, Worksheet, Game & Study Guide Solving linear equations

(AI.8) Linear functions. 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. The student is expected to:

AI.8 (A) Analyze situations and formulate systems of linear equations in two unknowns to solve problems.

Flip Charts Introduction to Functions

Flip Charts Math Grade 8

Flip Charts Systems of Equations

Flip Charts Systems of Equations

Quiz, Flash Cards, Worksheet, Game & Study Guide Solving equations and inequalities

AI.8 (B) Solve systems of linear equations using concrete models, graphs, tables, and algebraic methods.

Flip Charts Introduction to Functions

Flip Charts Math Grade 8

Flip Charts Systems of Equations

Flip Charts Systems of Equations

AI.8 (C) Interpret and determine the reasonableness of solutions to systems of linear equations.

Flip Charts Introduction to Functions

Flip Charts Math Grade 8

Flip Charts Systems of Equations

Flip Charts Systems of Equations

Algebra II (One-Half to One Credit).

(AII.1) Foundations for functions. The student uses properties and attributes of functions and applies functions to problem situations. The student is expected to:

AII.1 (B) Collect and organize data, make and interpret scatterplots, fit the graph of a function to the data, interpret the results, and proceed to model, predict, and make decisions and critical judgments.

Flip Charts Math Grade 8

Flip Charts Organizing & Displaying Data

Quiz, Flash Cards, Worksheet, Game & Study Guide Collecting and describing data

Quiz, Flash Cards, Worksheet, Game & Study Guide Displaying data

Quiz, Flash Cards, Worksheet, Game & Study Guide Experimental Probability

Quiz, Flash Cards, Worksheet, Game & Study Guide Using graphs to analyze data

(AII.10) Rational functions. 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. The student is expected to:

AII.10 (G) Use functions to model and make predictions in problem situations involving direct and inverse variation.

Quiz, Flash Cards, Worksheet, Game & Study Guide Functions

Quiz, Flash Cards, Worksheet, Game & Study Guide Linear relationships

(AII.3) Foundations for functions. 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. The student is expected to:

AII.3 (A) Analyze situations and formulate systems of equations in two or more unknowns or inequalities in two unknowns to solve problems.

Flip Charts Introduction to Functions

Flip Charts Math Grade 8

Flip Charts Systems of Equations

Flip Charts Systems of Equations

Quiz, Flash Cards, Worksheet, Game & Study Guide Solving equations and inequalities

AII.3 (B) Use algebraic methods, graphs, tables, or matrices, to solve systems of equations or inequalities.

Flip Charts Introduction to Functions

Flip Charts Math Grade 8

Flip Charts Systems of Equations

Flip Charts Systems of Equations

Quiz, Flash Cards, Worksheet, Game & Study Guide Solving equations and inequalities

AII.3 (C) Interpret and determine the reasonableness of solutions to systems of equations or inequalities for given contexts.

Flip Charts Introduction to Functions

Flip Charts Math Grade 8

Flip Charts Systems of Equations

Flip Charts Systems of Equations

Quiz, Flash Cards, Worksheet, Game & Study Guide Solving equations and inequalities

(AII.6) Quadratic and square root functions. The student understands that quadratic functions can be represented in different ways and translates among their various representations. The student is expected to:

AII.6 (B) Relate representations of quadratic functions, such as algebraic, tabular, graphical, and verbal descriptions.

Quiz, Flash Cards, Worksheet, Game & Study Guide Functions

Geometry (One Credit).

(G.10) Congruence and the geometry of size. The student applies the concept of congruence to justify properties of figures and solve problems. The student is expected to:

G.10 (A) Use congruence transformations to make conjectures and justify properties of geometric figures including figures represented on a coordinate plane.

Quiz, Flash Cards, Worksheet, Game & Study Guide Patterns in geometry

(G.11) Similarity and the geometry of shape. The student applies the concepts of similarity to justify properties of figures and solve problems. The student is expected to:

G.11 (A) Use and extend similarity properties and transformations to explore and justify conjectures about geometric figures.

Flip Charts Math Grade 8

Flip Charts Ratios, Rates & Proportions

Quiz, Flash Cards, Worksheet, Game & Study Guide Patterns in geometry

Quiz, Flash Cards, Worksheet, Game & Study Guide Ratios, proportions and percents

Quiz, Flash Cards, Worksheet, Game & Study Guide Similarity and scale

G.11 (B) Use ratios to solve problems involving similar figures.

Flip Charts Math Grade 8

Flip Charts Ratios, Rates & Proportions

Quiz, Flash Cards, Worksheet, Game & Study Guide Ratios, proportions and percents

Quiz, Flash Cards, Worksheet, Game & Study Guide Similarity and scale

G.11 (C) Develop, apply, and justify triangle similarity relationships, such as right triangle ratios, trigonometric ratios, and Pythagorean triples using a variety of methods.

Flip Charts Math Grade 8

Flip Charts Ratios, Rates & Proportions

(G.5) Geometric patterns. The student uses a variety of representations to describe geometric relationships and solve problems. The student is expected to:

G.5 (A) Use numeric and geometric patterns to develop algebraic expressions representing geometric properties.

Flip Charts Algebra Skills

Flip Charts Dot to Dot

Flip Charts Math Grade 8

Flip Charts Perimeter & Area

Quiz, Flash Cards, Worksheet, Game & Study Guide Perimeter and area

G.5 (B) Use 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.

Flip Charts Math Grade 8

Flip Charts Plane Geometry

Flip Charts Ratios, Rates & Proportions

Quiz, Flash Cards, Worksheet, Game & Study Guide Plane figures

Quiz, Flash Cards, Worksheet, Game & Study Guide Similarity and scale

G.5 (C) Use properties of transformations and their compositions to make connections between mathematics and the real world, such as tessellations.

Quiz, Flash Cards, Worksheet, Game & Study Guide Patterns in geometry

(G.7) Dimensionality and the geometry of location. The student understands that coordinate systems provide convenient and efficient ways of representing geometric figures and uses them accordingly. The student is expected to:

G.7 (A) Use one- and two-dimensional coordinate systems to represent points, lines, rays, line segments, and figures.

Quiz, Flash Cards, Worksheet, Game & Study Guide Plane figures

G.7 (B) Use slopes and equations of lines to investigate geometric relationships, including parallel lines, perpendicular lines, and special segments of triangles and other polygons.

Quiz, Flash Cards, Worksheet, Game & Study Guide Plane figures

G.7 (C) Derive and use formulas involving length, slope, and midpoint.

Quiz, Flash Cards, Worksheet, Game & Study Guide Linear equations

Quiz, Flash Cards, Worksheet, Game & Study Guide Plane figures

(G.8) Congruence and the geometry of size. The student uses tools to determine measurements of geometric figures and extends measurement concepts to find perimeter, area, and volume in problem situations. The student is expected to:

G.8 (A) Find areas of regular polygons, circles, and composite figures.

Flip Charts Dot to Dot

Flip Charts Math Grade 8

Flip Charts Perimeter & Area

Quiz, Flash Cards, Worksheet, Game & Study Guide Perimeter and area

G.8 (D) Find surface areas and volumes of prisms, pyramids, spheres, cones, cylinders, and composites of these figures in problem situations.

Quiz, Flash Cards, Worksheet, Game & Study Guide Three dimensional geometry/Measurement

(G.9) Congruence and the geometry of size. The student analyzes properties and describes relationships in geometric figures. The student is expected to:

G.9 (A) Formulate and test conjectures about the properties of parallel and perpendicular lines based on explorations and concrete models.

Flip Charts Math Grade 8

Flip Charts Plane Geometry

G.9 (D) Analyze the characteristics of polyhedra and other three-dimensional figures and their component parts based on explorations and concrete models.

Quiz, Flash Cards, Worksheet, Game & Study Guide Three dimensional geometry/Measurement

Precalculus (One-Half to One Credit).

(P.4) The student uses sequences and series as well as tools and technology to represent, analyze, and solve real-life problems. The student is expected to:

P.4 (A) Represent patterns using arithmetic and geometric sequences and series.

Flip Charts Arithmetic & Sequences

Flip Charts Circle Around

Flip Charts Math Grade 8

Quiz, Flash Cards, Worksheet, Game & Study Guide Sequences

P.4 (B) Use arithmetic, geometric, and other sequences and series to solve real-life problems.

Flip Charts Arithmetic & Sequences

Flip Charts Circle Around

Flip Charts Math Grade 8

Quiz, Flash Cards, Worksheet, Game & Study Guide Sequences

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

(MMA.2) The student uses graphical and numerical techniques to study patterns and analyze data. The student is expected to:

MMA.2 (A) Interpret information from various graphs, including line graphs, bar graphs, circle graphs, histograms, scatterplots, line plots, stem and leaf plots, and box and whisker plots to draw conclusions from the data.

Flip Charts Math Grade 8

Flip Charts Organizing & Displaying Data

Quiz, Flash Cards, Worksheet, Game & Study Guide Displaying data

Quiz, Flash Cards, Worksheet, Game & Study Guide Using graphs to analyze data

MMA.2 (B) Analyze numerical data using measures of central tendency, variability, and correlation in order to make inferences.

Flip Charts Math Grade 8

Flip Charts Organizing & Displaying Data

Quiz, Flash Cards, Worksheet, Game & Study Guide Collecting and describing data

Quiz, Flash Cards, Worksheet, Game & Study Guide Using graphs to analyze data

MMA.2 (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.

Quiz, Flash Cards, Worksheet, Game & Study Guide Linear relationships

(MMA.3) The student develops and implements a plan for collecting and analyzing data (qualitative and quantitative) in order to make decisions. The student is expected to:

MMA.3 (A) Formulate a meaningful question, determine the data needed to answer the question, gather the appropriate data, analyze the data, and draw reasonable conclusions.

Quiz, Flash Cards, Worksheet, Game & Study Guide Collecting and describing data

Quiz, Flash Cards, Worksheet, Game & Study Guide Experimental Probability

MMA.3 (C) Determine the appropriateness of a model for making predictions from a given set of data.

Quiz, Flash Cards, Worksheet, Game & Study Guide Using graphs to analyze data

(MMA.4) The student uses probability models to describe everyday situations involving chance. The student is expected to:

MMA.4 (B) Use experiments to determine the reasonableness of a theoretical model such as binomial, geometric, etc.

Quiz, Flash Cards, Worksheet, Game & Study Guide Experimental Probability

(MMA.5) The student uses functional relationships to solve problems related to personal income. The student is expected to:

MMA.5 (A) Use rates, linear functions, and direct variation to solve problems involving personal finance and budgeting, including compensations and deductions.

Flip Charts Applying Percents

Flip Charts Math Grade 8

MMA.5 (B) Solve problems involving personal taxes.

Flip Charts Applying Percents

Flip Charts Math Grade 8

(MMA.7) The student uses algebraic formulas, numerical techniques, and graphs to solve problems related to financial planning. The student is expected to:

MMA.7 (A) Analyze types of savings options involving simple and compound interest and compare relative advantages of these options.

Flip Charts Applying Percents

Flip Charts Math Grade 8

Quiz, Flash Cards, Worksheet, Game & Study Guide Applications of percent