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Showing Results for composing decomposing

Use this lesson to introduce composing and decomposing as part of your students’ addition and subtraction toolkits.

Composing and Decomposing

Use this scaffolded EL support lesson to help students learn the strategy of decomposing three-digit numbers to add their place values. This lesson can be used alone or prior to teaching Composing and Decomposing to students.

Decomposing and Adding Place Values

Why make things harder on ourselves? Teach your students to decompose numbers to make math easier! Use this as a stand alone lesson or a pre-lesson for *Decompose to Multiply: 6, 7, 8, and 9.*

Decomposing Numbers

Double-digit trouble? No problem! Your students will practice their decomposing and regrouping skills in this lesson.

Double Trouble: Subtraction Practice

Bring nursery rhymes to life by composing original songs! In this lesson, students develop reading fluency skills while experimenting with music composition. 

Nursery Rhyme Songs

Everyone loves an intriguing introduction! Help your second graders hook their readers as they practice writing new and improved introductions to well-loved fictional stories in this fun writing lesson.

Capture That Reader!

Are your students hooking their readers? Use this creative and imaginative writing exercise that will bring student beginnings to life.

Let's Hook 'Em!

Teach your students to use an area model to solve multiplication problems with a two-digit factor.

Multiplication with Area Models

Opinion writers need to establish credibility so that their audience will value their opinion. In this lesson, your students learn how to establish themselves as authorities on their chosen writing topics.

Opinion Writing: Brainstorming to Establish Credibility

Linking and helping verbs may not be the most exciting or understood verbs — but they are still important! Learn and practice these parts of speech. Learn and practice these parts of speech with this lesson that incorporates interactive exercises. 

Verbs Working Together: Helping and Linking Verbs

Teach your students to subtract mixed numbers with like denominators using the strategy of decomposition. This strategy helps students to manipulate and break down numbers to help them solve tricky subtraction problems. 

Subtracting Mixed Numbers Using the Decomposition Strategy

Make the number work for you! Use this lesson to teach your students to add mixed numbers with like denominators using the strategy of decomposition.

Adding Mixed Numbers Using the Decomposition Strategy

Inspire creativity in all of your students by giving them the tools they need to transform their simple sentences into longer, detailed descriptions.

STRETCH: Adding Details to Simple Sentences

Give students an opportunity to practice subtraction and analyze their peers' work with this fun lesson. Young mathematicians will have a great time playing a judging game and completing quirky worksheets.

You Be the Judge!

Give your students an introduction to types of story hooks as they compose original story beginnings the help of a word bank. This can be a stand-alone lesson or a support lesson for the Capture That Reader! lesson plan.

Story Hooks

Looking for a fun way to reinforce multiplication and area finding skills? This hands-on lesson gives students a chance to create their own multiplication equations by making rectangular models.


Finding Area

Teach your students to decompose factors as a strategy to find multiples of 6, 7, 8, and 9. This lesson supports flexible thinking and number sense.  

Decompose to Multiply: 6, 7, 8, and 9

Help your students subtract with confidence by sharing two different strategies. Use this lesson to build on students’ understanding of subtraction and to evaluate this key skill.

Subtraction with Regrouping

Teach your students to recognize and use the distributive property of multiplication.

Distributive Property

Let's talk about the distributive property! Give students a chance to explain their thinking of how and why this property of multiplication works. This lesson may be taught as a standalone or as support to the lesson Distributive Property.

Justifying the Distributive Property

In this lesson, students will add three-digit numbers using expanded form addition and standard algorithm addition. They'll explain their answers and highlight the steps for each of the strategies.

Addition with Regrouping

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