Fencing - Grade 7

- Subject:
- Mathematics
- Material Type:
- Assessment
- Date Added:
- 07/18/2022

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Fencing - Grade 7

- Subject:
- Mathematics
- Material Type:
- Assessment
- Date Added:
- 07/18/2022

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Washing Cars - Grade 7

- Subject:
- Mathematics
- Material Type:
- Assessment
- Date Added:
- 07/18/2022

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Close to Zero - Grade 8

- Subject:
- Mathematics
- Material Type:
- Assessment
- Date Added:
- 07/18/2022

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One, No, or Many - Grade 8

- Subject:
- Mathematics
- Material Type:
- Assessment
- Date Added:
- 07/18/2022

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Printing Jerseys - Grade 8

- Subject:
- Mathematics
- Material Type:
- Assessment
- Date Added:
- 07/18/2022

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Shoe Math - Grade 8

- Subject:
- Mathematics
- Material Type:
- Assessment
- Date Added:
- 07/18/2022

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Systems Fun - HS Algebra I

- Subject:
- Mathematics
- Material Type:
- Lesson Plan
- Date Added:
- 07/18/2022

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The Story of 2 and x - HS Algebra I

- Subject:
- Mathematics
- Material Type:
- Lesson Plan
- Date Added:
- 07/18/2022

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It Depends- Grade 6

- Subject:
- Mathematics
- Material Type:
- Lesson Plan
- Date Added:
- 07/18/2022

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Rolling Number Cubes - Grade 6

- Subject:
- Mathematics
- Material Type:
- Lesson Plan
- Date Added:
- 07/18/2022

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Standing In Line - Grade 6

- Subject:
- Mathematics
- Material Type:
- Lesson Plan
- Date Added:
- 07/18/2022

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Fencing - Grade 7

- Subject:
- Mathematics
- Material Type:
- Lesson Plan
- Date Added:
- 07/18/2022

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Washing Cars - Grade 7

- Subject:
- Mathematics
- Material Type:
- Lesson Plan
- Date Added:
- 07/18/2022

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Close to Zero - Grade 8

- Subject:
- Mathematics
- Material Type:
- Lesson Plan
- Date Added:
- 07/18/2022

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CC BY-NC-SA
One, No, or Many - Grade 8

- Subject:
- Mathematics
- Material Type:
- Lesson Plan
- Date Added:
- 07/18/2022

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Printing Jerseys - Grade 8

- Subject:
- Mathematics
- Material Type:
- Lesson Plan
- Date Added:
- 07/18/2022

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Shoe Math - Grade 8

- Subject:
- Mathematics
- Material Type:
- Lesson Plan
- Date Added:
- 07/18/2022

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- Subject:
- Mathematics
- Material Type:
- Full Course
- Provider:
- Pearson
- Date Added:
- 10/06/2016

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Equations and Inequalities

Type of Unit: Concept

Prior Knowledge

Students should be able to:

Add, subtract, multiply, and divide with whole numbers, fractions, and decimals.

Use the symbols <, >, and =.

Evaluate expressions for specific values of their variables.

Identify when two expressions are equivalent.

Simplify expressions using the distributive property and by combining like terms.

Use ratio and rate reasoning to solve real-world problems.

Order rational numbers.

Represent rational numbers on a number line.

Lesson Flow

In the exploratory lesson, students use a balance scale to find a counterfeit coin that weighs less than the genuine coins. Then continuing with a balance scale, students write mathematical equations and inequalities, identify numbers that are, or are not, solutions to an equation or an inequality, and learn how to use the addition and multiplication properties of equality to solve equations. Students then learn how to use equations to solve word problems, including word problems that can be solved by writing a proportion. Finally, students connect inequalities and their graphs to real-world situations.

- Subject:
- Algebra
- Mathematics
- Material Type:
- Unit of Study
- Provider:
- Pearson

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Lesson OverviewUsing a balance scale, students decide whether a certain value of a variable makes a given equation or inequality true. Then students extend what they learned using the balance scale to substituting a given value for a variable into an equation or inequality to decide if that value makes the equation or inequality true or false.Key ConceptsStudents will extend what they know about substituting a value for a variable into an expression to evaluate that expression.Equations and inequalities may contain variables. These equations or inequalities are neither true nor false. When a value is substituted for a variable, the equation or inequality then becomes true or false. If the equation or inequality is true for that value of the variable, that value is considered a solution to the equation or inequality.Goals and Learning ObjectivesUnderstand what solving an equation or inequality means.Use substitution to determine whether a given number makes an equation or inequality true.

- Subject:
- Algebra
- Material Type:
- Lesson Plan
- Date Added:
- 09/21/2015