Common Core 5th Grade Math: Writing & Evaluating Numerical Expressions 5.oa.a.2

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Print, copy, teach! Everything you need to teach CCSS.5.oa.a.2

This activity packet includes 3 lessons. It also includes math posters and activity cards that will be useful in implementing the lessons. This packet includes the following:

Standard Teaching Notes
Addition Signal Words Poster
Subtraction Signal Words Poster
Multiplication Signal Words Poster
Division Signal Words Poster
Lesson 1: Hands on Models (Teaching Notes)
Lesson 1: Hands on Models (Number Cards Printable)
Lesson 2: Numbers to Words(Teaching Notes)
Lesson 2: Numbers to Words(Worksheet Practice)
Lesson 3: Partner Expression Cards (Teaching Notes)
Lesson 3: Partner Expression Cards (Printable Cards 1)
Lesson 3: Partner Expression Cards (Printable Cards 2)

Additional Information:

Prerequisite Skills:
Students should be familiar with addition, subtraction, multiplication, and division. Students should also be aware of the order of operations used in math. (parenthesis, exponents, multiplication, division, addition, subtraction)

Common Core Alignment:
CCSS.MATH.CONTENT.5.OA.A.2Write simple expressions that record calculations with numbers, and interpret numerical expressions without evaluating them. 

Activity Objectives:
Given a situation described in words, students will write simple numerical expressions.

Essential Question:
How can I take a word problem and turn it into a numerical expression?

After the teacher models how to turn word problems into numerical expressions, the signal word posters should be explained to the students. The following lessons are then recommended.

Lesson One: “Hands On Models”
The teacher writes the sample word problems on the board. Students use the number cards to construct concrete models of simple numerical expressions. Can be used as an independent task or as partner/group work.

Lesson Two: “Numbers to Words”
The teacher will provide an example of a numerical expression on the board (included in this resource). The teacher will model and “think aloud” how to turn the numerical expression into a word problem. Students will then be given a worksheet for practice. (This is a good differentiated activity because students’ word problems will be more complex depending on their ability level.)

Lesson Three: “Partner Expression Cards”
Students work with a partner to pull an expression card. If it is a numerical expression, they will write the word problem. If it is a word problem, they will write a numerical expression. Partners take turns pulling a card until all cards have been played. (Can make this as a game if you have students keep points)

Numerical Expressions Activity Packet by A Touch of Class Teaching is licensed under a Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.
Total Pages
17 pages
Answer Key
Teaching Duration
3 days
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to see state-specific standards (only available in the US).
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.


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