## Mathematics Standards

## Results

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**11**-**20**of**99**Standards#### Standard Identifier: 6.EE.9

Grade:

**6**
Domain:

**Expressions and Equations****Cluster**:

Represent and analyze quantitative relationships between dependent and independent variables.

**Standard**:

Use variables to represent two quantities in a real-world problem that change in relationship to one another; write an equation to express one quantity, thought of as the dependent variable, in terms of the other quantity, thought of as the independent variable. Analyze the relationship between the dependent and independent variables using graphs and tables, and relate these to the equation. For example, in a problem involving motion at constant speed, list and graph ordered pairs of distances and times, and write the equation d = 65t to represent the relationship between distance and time.

#### Standard Identifier: 7.EE.1

Grade:

**7**
Domain:

**Expressions and Equations****Cluster**:

Use properties of operations to generate equivalent expressions.

**Standard**:

Apply properties of operations as strategies to add, subtract, factor, and expand linear expressions with rational coefficients.

#### Standard Identifier: 7.EE.2

Grade:

**7**
Domain:

**Expressions and Equations****Cluster**:

Use properties of operations to generate equivalent expressions.

**Standard**:

Understand that rewriting an expression in different forms in a problem context can shed light on the problem and how the quantities in it are related. For example, a + 0.05a = 1.05a means that “increase by 5%” is the same as “multiply by 1.05.”

#### Standard Identifier: 7.EE.3

Grade:

**7**
Domain:

**Expressions and Equations****Cluster**:

Solve real-life and mathematical problems using numerical and algebraic expressions and equations.

**Standard**:

Solve multi-step real-life and mathematical problems posed with positive and negative rational numbers in any form (whole numbers, fractions, and decimals), using tools strategically. Apply properties of operations to calculate with numbers in any form; convert between forms as appropriate; and assess the reasonableness of answers using mental computation and estimation strategies. For example: If a woman making $25 an hour gets a 10% raise, she will make an additional 1/10 of her salary an hour, or $2.50, for a new salary of $27.50. If you want to place a towel bar 9 3/4 inches long in the center of a door that is 27 1/2 inches wide, you will need to place the bar about 9 inches from each edge; this estimate can be used as a check on the exact computation.

#### Standard Identifier: 7.EE.4.a

Grade:

**7**
Domain:

**Expressions and Equations****Cluster**:

Solve real-life and mathematical problems using numerical and algebraic expressions and equations.

**Standard**:

Use variables to represent quantities in a real-world or mathematical problem, and construct simple equations and inequalities to solve problems by reasoning about the quantities. Solve word problems leading to equations of the form px + q = r and p(x + q) = r, where p, q, and r are specific rational numbers. Solve equations of these forms fluently. Compare an algebraic solution to an arithmetic solution, identifying the sequence of the operations used in each approach. For example, the perimeter of a rectangle is 54 cm. Its length is 6 cm. What is its width?

#### Standard Identifier: 7.EE.4.b

Grade:

**7**
Domain:

**Expressions and Equations****Cluster**:

Solve real-life and mathematical problems using numerical and algebraic expressions and equations.

**Standard**:

Use variables to represent quantities in a real-world or mathematical problem, and construct simple equations and inequalities to solve problems by reasoning about the quantities. Solve word problems leading to inequalities of the form px + q > r or px + q < r, where p, q, and r are specific rational numbers. Graph the solution set of the inequality and interpret it in the context of the problem. For example: As a salesperson, you are paid $50 per week plus $3 per sale. This week you want your pay to be at least $100. Write an inequality for the number of sales you need to make, and describe the solutions.

#### Standard Identifier: A-REI.1

Grade Range:

**7–12**
Domain:

**Reasoning with Equations and Inequalities**
Discipline:

**Algebra I**
Conceptual Category:

**Algebra****Cluster**:

Understand solving equations as a process of reasoning and explain the reasoning. [Master linear; learn as general principle.]

**Standard**:

Explain each step in solving a simple equation as following from the equality of numbers asserted at the previous step, starting from the assumption that the original equation has a solution. Construct a viable argument to justify a solution method.

#### Standard Identifier: A-REI.1

Grade Range:

**7–12**
Domain:

**Reasoning with Equations and Inequalities**
Discipline:

**Math I**
Conceptual Category:

**Algebra****Cluster**:

Understand solving equations as a process of reasoning and explain the reasoning. [Master linear; learn as general principle.]

**Standard**:

Explain each step in solving a simple equation as following from the equality of numbers asserted at the previous step, starting from the assumption that the original equation has a solution. Construct a viable argument to justify a solution method.

#### Standard Identifier: A-REI.10

Grade Range:

**7–12**
Domain:

**Reasoning with Equations and Inequalities**
Discipline:

**Math I**
Conceptual Category:

**Algebra****Cluster**:

Represent and solve equations and inequalities graphically. [Linear and exponential; learn as general principle.]

**Standard**:

Understand that the graph of an equation in two variables is the set of all its solutions plotted in the coordinate plane, often forming a curve (which could be a line).

#### Standard Identifier: A-REI.10

Grade Range:

**7–12**
Domain:

**Reasoning with Equations and Inequalities**
Discipline:

**Algebra I**
Conceptual Category:

**Algebra****Cluster**:

Represent and solve equations and inequalities graphically. [Linear and exponential; learn as general principle.]

**Standard**:

Understand that the graph of an equation in two variables is the set of all its solutions plotted in the coordinate plane, often forming a curve (which could be a line).

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**11**-**20**of**99**Standards
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