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- 5.OA.A.1Use parentheses, brackets, or braces in numerical expressions, and evaluate expressions with these symbols.
- 5.OA.A.2Write simple expressions that record calculations with numbers, and interpret numerical expressions without evaluating them. For example, express the calculation "add 8 and 7, then multiply by 2" as 2 × (8 + 7). Recognize that 3 × (18932 + 921) is three times as large as 18932 + 921, without having to calculate the indicated sum or product.

5.OA.A.2

Write simple expressions that record calculations with numbers, and interpret numerical expressions without evaluating them. For example, express the calculation "add 8 and 7, then multiply by 2" as 2 × (8 + 7). Recognize that 3 × (18932 + 921) is three times as large as 18932 + 921, without having to calculate the indicated sum or product.

Evaluating Expressions

5th Grade Math

» Unit:

Numerical Expressions and Patterns

Big Idea:This lesson is part of laying the foundation for algebraic thinking, including an understanding that cracking the code can be fun! Students view an algebraic expression as a challenging code to make sense of.

The Challenge of Directions

5th Grade Math

» Unit:

Numerical Expressions and Patterns

Big Idea:Students grapple with the challenges of carefully reading questions to answer what is actually asked. Interpreting the directions can be the most challenging part of a problem.

Choice Time Continued

5th Grade Math

» Unit:

Numerical Expressions and Patterns

Big Idea:Providing choice helps keeps students motivated. Students move freely between activities as they practice what they have learned.

Expressions and Word Problems

7th Grade Math

» Unit:

Operations with Rational Numbers

Big Idea:Students work in pairs to write and evaluate expressions from word problems.

Writing Numeric Expressions

6th Grade Math

» Unit:

Expressions

Big Idea:Expressions can be used to represent a mathematical or real-world problem using numbers and symbols to make meaning of a problem and understand problems.

Writing Numerical Expressions

5th Grade Math

» Unit:

Operations & Algebraic Thinking

Big Idea:Learn how language and math connect!

Interpreting Numerical Expressions

5th Grade Math

» Unit:

Operations & Algebraic Thinking

Big Idea:Determine the inventory of water bottles for the tennis match!

Mirror Image Review

5th Grade Math

» Unit:

Operations & Algebraic Thinking

Big Idea:Create a study guide to review Operations & Algebraic thinking.

Math Maps (Part 3)

5th Grade Math

» Unit:

Bringing It All Together

Big Idea:Students use mathematical statements to write encouraging statements for a service learning project.

Using Order of Operations & Parentheses

5th Grade Math

» Unit:

Operations & Algebraic Thinking

Big Idea:"Fish around" to find out why using numeric expressions is a good strategy to find total numbers!

5.OA.A.1

Use parentheses, brackets, or braces in numerical expressions, and evaluate expressions with these symbols.

5.OA.A.2

Write simple expressions that record calculations with numbers, and interpret numerical expressions without evaluating them. For example, express the calculation "add 8 and 7, then multiply by 2" as 2 × (8 + 7). Recognize that 3 × (18932 + 921) is three times as large as 18932 + 921, without having to calculate the indicated sum or product.