Domain Description

Students strategically choose and efficiently implement procedures to solve linear equations in one variable, understanding that when they use the properties of equality and the concept of logical equivalence, they maintain the solutions of the original equation. Students solve systems of two linear equations in two variables and relate the systems to pairs of lines in the plane; these intersect, are parallel, or are the same line. Students use linear equations, systems of linear equations, linear functions, and their understanding of slope of a line to analyze situations and solve problems.

Standards in this Domain

• MAT-08.EE.01 - Know and apply the properties of integer exponents to generate equivalent numerical expressions. For example, 3² × 3^-5 = 3^-3 = 1/3³ = 1/27.

• MAT-08.EE.02 - Use square root and cube root symbols to represent solutions to equations of the formx² = p and x³ = p, where p is a positive rational number. Evaluate square roots of small perfect squares and cube roots of small perfect cubes. Know that √2 is irrational.

• MAT-08.EE.03 - Use numbers expressed in the form of a single digit times an integer power of 10 to estimate very large or very small quantities, and to express how many times as much one is than the other. For example, estimate the population of the United States as 3 times 10⁸ and the population of the world as 7 times 10⁹, and determine that the world population is more than 20 times larger.

• MAT-08.EE.04 - Perform operations with numbers expressed in scientific notation, including problems where both decimal and scientific notation are used. Use scientific notation and choose units of appropriate size for measurements of very large or very small quantities (e.g., use millimeters per year for seafloor spreading). Interpret scientific notation that has been generated by technology

• MAT-08.EE.05 - Graph proportional relationships, interpreting the unit rate as the slope of the graph. Compare two different proportional relationships represented in different ways. For example, compare a distance-time graph to a distance-time equation to determine which of two moving objects has greater speed.

• MAT-08.EE.06 - Use similar triangles to explain why the slope m is the same between any two distinct points on a non-vertical line in the coordinate plane; derive the equation y = mx for a line through the origin and the equation y = mx + b for a line intercepting the vertical axis at b.

• MAT-08.EE.07 - Solve linear equations in one variable.

• MAT-08.EE.08 - Analyze and solve pairs of simultaneous linear equations.

Calculation Method for Domains

Domains are larger groups of related standards. The Domain Grade is a calculation of all the related standards. Click on the standard name below each Domain to access the learning targets and rubrics/ proficiency scales for individual standards within the domain.

Student Learning Targets:

Knowledge Targets

• I can apply all five properties of integer exponents to generate equivalent numerical expressions.

Reasoning Targets

• I can apply more than one property of exponents to simplify multi-step expressions.

Skills Domain (Performance) Targets

• I can solve word problems involving properties of exponents.

Proficiency Scale

Link to Proficiency Scale PDF

Resources

Websites

• www.bigideasmath.com
  • Chapter 9
• www.mathisfun.com
• ccssmath.org

Vocabulary

• Power
• Exponent
• Base

Student Learning Targets:

Knowledge Targets

• I can use square root symbols to represent solutions to equations in the form x² = p where p is a positive rational number.
• I can use cube root symbols to represent solutions to equations in the form x³ = p where p is a positive rational number.
  
• I can recognize that squaring a number and taking the square root of a number are inverse operations.
• I can recognize that cubing a number and taking the cube root of a number are inverse operations.

Reasoning Targets

• I can evaluate the square root of a perfect square.
• I can evaluate the cube root of a perfect cube.
  
• I can explain why the square root of a non-perfect square is irrational.

Proficiency Scale

Link to Proficiency Scale PDF

Link to Proficiency Scale Google Doc

Resources

Websites

• www.bigideasmath.com
  • Chapter 6
• For square roots: www.mathisfun.com 
• For cube roots: www.mathisfun.com
• ccssmath.org

Vocabulary

• square root
• cube root
• radical
• radicand
• perfect square
• perfect cube

Student Learning Targets:

Knowledge Targets

• I can graph proportional relationships in a coordinate plane.
  

Reasoning Targets

• I can interpret the unit rate of a proportional relationship as the slope of the graph that intersects the origin.
  

Skills Domain (Performance) Targets

• I can compare two different proportional relationships represented in different ways, such as tables, graphs, and equations.

Proficiency Scale

Link to Proficiency Scale PDF

Resources

Websites

• www.khanacademy.org
• www.mathisfun.com
• ccssmath.org

Vocabulary

• slope
• y-intercept
• linear equation
• proportional

Student Learning Targets:

Knowledge Targets

• I can use right triangles to show why the slope m is the same between any two distinct points on a non-vertical line in the coordinate plane.
  
• I can write an equation for a line in slope-intercept for (y = mx + b).

Reasoning Targets

• I can justify the right triangles are similar by comparing the ratios of the lengths of the corresponding sides.

Proficiency Scale

Link to Proficiency Scale PDF

Resources

Websites

• www.bigideasmath.com
  • Chapter 2
• www.mathisfun.com
• ccssmath.org

Vocabulary

• slope
• y-intercept
• slope-intercept form
• linear equation

Student Learning Targets:

Knowledge Targets

• I can

Reasoning Targets

• I can

Skills Domain (Performance) Targets

• I can

Product Targets

• I can

Proficiency Scale

Link to Proficiency Scale PDF

Resources

Websites

• Add resources with links, youtube or PDF

Vocabulary

• List

Student Learning Targets:

Knowledge Targets

• I can use inverse operations and the properties of equality to solve linear equations in one variable.
  

Reasoning Targets

• I can solve linear equations in one variable with one solution.
• I can solve linear equations in one variable with infinitely many solutions.
  
• I can solve linear equations in one variable with no solutions.

Proficiency Scale

Link to Proficiency Scale PDF

Resources

Websites

• www.bigideasmath.com
  • Chapter 1
• www.ixl.com
  • go to single variable equations
• www.kahnacademy.org
• ccssmath.org

Vocabulary

• linear equation
• solution
• inverse 

Student Learning Targets:

Reasoning Targets

• I can solve linear equations with rational number coefficients and variables on both sides of the equation.
• I can solve linear equations involving the distributive property.
• I can solve linear equations involving combining like terms.

Proficiency Scale

Link to Proficiency Scale PDF

Resources

Websites

• www.bigideasmath.com
  • Chapter 1
• www.ixl.com
  • go to single variable equations
• www.kahnacademy.org
• ccssmath.org

Vocabulary

• solution
• inverse
• coefficient
• distributive property
• like terms
• linear equation

Domain Description

Students grasp the concept of a function as a rule that assigns to each input exactly one output. They understand that functions describe situations where one quantity determines another. They can translate among representations and partial representations of functions (noting that tabular and graphical representations may be partial representations), and they describe how aspects of the function are reflected in the different representations.

Standards in this Domain

• MAT-08.F.01 - Understand that a function is a rule that assigns to each input exactly one output. The graph of a function is the set of ordered pairs consisting of an input and the corresponding output. (Function notation is not required for Grade 8)

• MAT-08.F.02 - Compare properties of two functions each represented in a different way (algebraically, graphically, numerically in tables, or by verbal descriptions). For example, given a linear function represented by a table of values and a linear function represented by an algebraic expression, determine which function has the greater rate of change.

• MAT-08.F.03 - Interpret the equation y = mx + b as defining a linear function, whose graph is a straight line; give examples of functions that are not linear. For example, the function A = s² giving the area of a square as a function of its side length is not linear because its graph contains the points (1,1), (2,4) and (3,9), which are not on a straight line.

• MAT-08.F.04 - Construct a function to model a linear relationship between two quantities. Determine the rate of change  and initial value of the function from a description of a relationship or from two (x, y) values, including reading these from a table or from a graph. Interpret the rate of change and initial value of a linear function in terms of the situation it models, and in terms of its graph or a table of values.

• MAT-08.F.05 - Describe qualitatively the functional relationship between two quantities by analyzing a graph (e.g., where the function is increasing or decreasing, linear or nonlinear). Sketch a graph that exhibits the qualitative features of a function that has been described verbally.

Calculation Method for Domains

Domains are larger groups of related standards. The Domain Grade is a calculation of all the related standards. Click on the standard name below each Domain to access the learning targets and rubrics/ proficiency scales for individual standards within the domain.

Student Learning Targets:

Knowledge Targets

• I can understand that in a function, each input has only one output.
  

Reasoning Targets

• I can evaluate a function.
• I can complete an input-output table accurately.
  
• I can describe the domain and the range of a function.
• I can determine whether a given graph or table represents a function.

Skills Domain (Performance) Targets

• I can graph a function from a table.

Proficiency Scale

Link to Proficiency Scale PDF

Resources

Websites

• www.bigideasmath.com
  • Chapter 4
• ccssmath.org

Vocabulary

• function
• domain
• range
• input
• output
• discrete 
• continuous
• linear
• nonlinear

Student Learning Targets:

Reasoning Targets

• I can determine the properties of a function written in algebraic form (slope, y-intercept, linear, nonlinear).
• I can determine the properties of a function given the inputs and outputs in a table.
  
• I can determine the properties of a function represented as a graph.
• I can determine the properties of a function given verbally.

Skills Domain (Performance) Targets

I can compare properties of two functions each represented in a different way.

Proficiency Scale

Link to Proficiency Scale PDF

Resources

Websites

• www.bigideasmath.com
  • Chapter 4
• ccssmath.org

Vocabulary

• rate of change

Domain Description

Students use ideas about distance and angles, how they behave under translations, rotations, reflections, and dilations, and ideas about congruence and similarity to describe and analyze two-dimensional figures and to solve problems. Students show that the sum of the angles in a triangle is the angle formed by a straight line, and that various configurations of lines give rise to similar triangles because of the angles created when a transversal cuts parallel lines. Students understand the statement of the Pythagorean Theorem and its converse, and can explain why the Pythagorean Theorem holds, for example, by decomposing a square in two different ways. They apply the Pythagorean Theorem to find distances between points on the coordinate plane, to find lengths, and to analyze polygons. Students complete their work on volume by solving problems involving cones, cylinders, and spheres.

Standards in this Domain

• MAT-08.G.01 - Verify experimentally the properties of rotations, reflections, and translations

• MAT-08.G.02 - Understand that a two-dimensional figure is congruent to another if the second can be obtained from the first by a sequence of rotations, reflections, and translations; given two congruent figures, describe a sequence that exhibits the congruence between them.

• MAT-08.G.03 - Describe the effect of dilations, translations, rotations, and reflections on two-dimensional figures using coordinates.

• MAT-08.G.04 - Understand that a two-dimensional figure is similar to another if the second can be obtained from the first by a sequence of rotations, reflections, translations, and dilations; given two similar two-dimensional figures, describe a sequence that exhibits the similarity between them.

• MAT-08.G.05 - Use informal arguments to establish facts about the angle sum and exterior angle of triangles, about the angles created when parallel lines are cut by a transversal, and the angle-angle criterion for similarity of triangles. For example, arrange three copies of the same triangle so that the sum of the three angles appears to form a line, and give an argument in terms of transversals why this is so.

• MAT-08.G.06 - Explain a proof of the Pythagorean Theorem and its converse.

• MAT-08.G.07 - Apply the Pythagorean Theorem to determine unknown side lengths in right triangles in real-world and mathematical problems in two and three dimensions.

• MAT-08.G.08 - Apply the Pythagorean Theorem to find the distance between two points in a coordinate system.

• MAT-08.G.09 - Know the formulas for the volumes of cones, cylinders, and spheres and use them to solve real-world and mathematical problems.

Calculation Method for Domains

Domains are larger groups of related standards. The Domain Grade is a calculation of all the related standards. Click on the standard name below each Domain to access the learning targets and rubrics/ proficiency scales for individual standards within the domain.

Student Learning Targets:

Reasoning Targets

• I can apply the Pythagorean Theorem to determine unknown side lengths in right triangles in mathematical problems in two and three dimensions.
  

Skills Domain (Performance) Targets

• I can apply the Pythagorean Theorem to determine unknown side lengths in right triangles in real world problems in two and three dimensions.

Proficiency Scale

Link to Proficiency Scale PDF

Resources

Websites

• www.bigideasmath.com
  • Chapter 6 
• www.mathisfun.com
• www.khanacademy.org
  
  • try searching Pythagorean Theorem examples
• ccssmath.org

Vocabulary

• Pythagorean Theorem
• Leg
• Hypotenuse
• Right Triangle

Standards in this Domain

• MAT-08.NS.01 - Know that numbers that are not rational are called irrational. Understand informally that every number has a decimal expansion; for rational numbers show that the decimal expansion repeats eventually, and convert a decimal expansion which repeats eventually into a rational number.

• MAT-08.NS.02 - Use rational approximations of irrational numbers to compare the size of irrational numbers, locate them approximately on a number line diagram, and estimate the value of expressions (e.g., ∏²). For example, by truncating the decimal expansion of √2, show that √2 is between 1 and 2, then between 1.4 and 1.5, and explain how to continue on to get better approximations.

Calculation Method for Domains

Domains are larger groups of related standards. The Domain Grade is a calculation of all the related standards. Click on the standard name below each Domain to access the learning targets and rubrics/ proficiency scales for individual standards within the domain.

Standards in this Domain

• MAT-08.SP.01 - Construct and interpret scatter plots for bivariate measurement data to investigate patterns of association between two quantities. Describe patterns such as clustering, outliers, positive or negative association, linear association, and nonlinear association.

• MAT-08.SP.02 - Know that straight lines are widely used to model relationships between two quantitative variables. For scatter plots that suggest a linear association, informally fit a straight line, and informally assess the model fit by judging the closeness of the data points to the line.

• MAT-08.SP.03 - Use the equation of a linear model to solve problems in the context of bivariate measurement data, interpreting the slope and intercept. For example, in a linear model for a biology experiment, interpret a slope of 1.5 cm/hr as meaning that an additional hour of sunlight each day is associated with an additional 1.5 cm in mature plant height.

• MAT-08.SP.04 - Understand that patterns of association can also be seen in bivariate categorical data by displaying frequencies and relative frequencies in a two-way table. Construct and interpret a two-way table summarizing data on two categorical variables collected from the same subjects. Use relative frequencies calculated for rows or columns to describe possible association between the two variables. For example, collect data from students in your class on whether or not they have a curfew on school nights and whether or not they have assigned chores at home. Is there evidence that those who have a curfew also tend to have chores?

Calculation Method for Domains

Domains are larger groups of related standards. The Domain Grade is a calculation of all the related standards. Click on the standard name below each Domain to access the learning targets and rubrics/ proficiency scales for individual standards within the domain.