Unit: Using Variables

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Unit Description

This unit covers using variables in equations and inequalities. The unit covers using variables in problems that involve addition, subtraction, multiplication, and division. One lesson is devoted to using signal words to determine the operation. The final lesson focuses on inequalities with three variables. Standards covered: 4.PRA.2. Use letters and other symbols (e.g., L, x) as variables in expressions and in equations or inequalities (mathematical sentences that use =, <, and >).

Lessons

Introduction to Using Variables Resources: 3

SWBAT solve equations without variables

12
Introduction to Inequalities Resources: 1

SWBAT solve inequalities without variables

6
Equations: Addition using Variable Resources: 1

SWBAT solve addition equations with variables (letters or pictures)

9
Equations: Subtraction Using Variables Resources: 2

SWBAT solve subtraction equations with variables

5
Equations: Multiplication using Variables Resources: 3

SWBAT solve multiplication equations with variables (letters or pictures)

4
Equations: Division using Variables Resources: 2

SWBAT solve division equations with variables

4
Inequalities: Set Up with Variables Resources: 2

SWBAT set up inequalities with variables (letters or pictures)

4
Equations: Set Up with Variable Review Resources: 2

SWBAT set up an equation with a variable from word problem

4
Signal Words: Choosing the Appropriate Operation Resources: 2

SWBAT identify signal words for selecting appropriate operation in word problem.

14
Inequalities: Solving with 3 Variables Resources: 2

SWBAT assign numbers to the variables to solve an inequality with three variables

4

Unit Resources

IND Inequality Word Problems   Classwork

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