Other
Nearpod: Composing & Decomposing Numbers 11 19
In the lesson on composing and decomposing numbers, students will use number bonds and ten frames to help them compose and decompose numbers 11-19.
Student Achievement Partners
Illustrative Mathematics: Three Composing/decomposing Problems [Pdf]
In this grade 2 lesson, students use base ten blocks to compose and decompose numbers.
Better Lesson
Better Lesson: Ways to Make 10 a Lesson on Decomposing
Students will learn what it means to represent a number in different ways and will begin to explore decomposing numbers. Included is a detailed lesson plan, link to an online game, worksheet, center ideas, and a "Ways to Make 10" chart.
Better Lesson
Better Lesson: Assessing Composing and Decomposing Shapes
Knowledge in Action! Today you will find out if the students are understanding the idea of decomposing and composing shapes with pattern blocks.
Study Pad
Splash Learn: Decompose Numbers (11 to 19) Into a Ten and a Few Ones
[Free Registration/Login Required] Using ten frames and number sentences, students will practice decomposing numbers into tens and ones.
Starfall
Starfall: Compose & Decompose Numbers
This learning game focuses on adding tens and ones to fill candy orders and deliver them.
Other
Nearpod: Decomposing Numbers to 10
In the lesson on decomposing numbers, students will use number bonds to help them decompose numbers up to 10. They will also review key vocabulary terms, like decompose, number bonds, parts, and whole.
K-5 Math Teaching Resources
K 5 Math Teaching Resources: Decompose a Factor [Pdf]
Students will learn how to determine the product by decomposing the factors.
Khan Academy
Khan Academy: Decompose Figures to Find Volume
In this exercise, students practice decomposing figures to find the volume. Students receive immediate feedback and have the opportunity to get hints and try questions repeatedly.
Khan Academy
Khan Academy: Decompose Fractions With Denominators of 100
In this exercise, students practice decomposing fractions with denominators of 100. Students receive immediate feedback and have the opportunity to get hints and try questions repeatedly.
Khan Academy
Khan Academy: Decompose Figures to Find Area 1
In this exercise, students practice decomposing figures to find area. Students receive immediate feedback and have the opportunity to get hints and try questions repeatedly.
Khan Academy
Khan Academy: Decompose Figures to Find Area 2
In this exercise, students practice decomposing figures to find area. Students receive immediate feedback and have the opportunity to get hints and try questions repeatedly.
Khan Academy
Khan Academy: Composing Shapes
In this exercise, students practice composing shapes. Students receive immediate feedback and have the opportunity to get hints and try questions repeatedly.
Louisiana Department of Education
Louisiana Doe: Louisiana Believes: Eureka Math Parent Guide: Identifying, Composing, and Partitioning Shapes
A guide to support parents as they work with their students in identifying, composing, and partitioning shapes.
Louisiana Department of Education
Louisiana Doe: Louisiana Believes: Eureka Math Parent Guide: Analyzing, Comparing, and Composing Shapes
A guide to support parents as they work with their students in analyzing, comparing, and composing shapes.
Illustrative Mathematics
Illustrative Mathematics: Overlapping Rectangles
The purpose of this task is to give students an opportunity to compose and decompose polygons to make rectangles. The students will be shown a picture and are asked to count how many rectangles they see. Explanations and examples are...
Illustrative Mathematics
Illustrative Mathematics: Make Your Own Puzzle
Students will cut a square into four pieces, and then will put those pieces in an envelope for another student to put together. The purpose of this task is to give students a hands-on experience with composing and decomposing geometric...
Better Lesson
Better Lesson: Area & the Distributive Property
Third graders develop spatial reasoning about large areas through composing and decomposing rectangles to determine area.
Other
The Math Learning Center: Pattern Shapes
Students use pattern shapes to explore geometry and fractions, creating their own designs, or filling in outlines. As they work with the shapes students explore geometric relationships, think about angles, investigate symmetry, and...
Khan Academy
Khan Academy: Decompose Figures to Find Volume
Find the volume of irregular 3D figures by dividing the figures into rectangular prisms and finding the volume of each part. Students receive immediate feedback and have the opportunity to try questions repeatedly, watch a video or...
Better Lesson
Better Lesson: Fun With Four: Decomposing to Known Factors of 1, 2, and 5
Third graders act as problem solvers to take an unknown fact and solve it by breaking it down into pieces that are known.
Better Lesson
Better Lesson: Filling Shadows With More and Less
First graders use their understanding of composing and decomposing shapes to cover a given area. Today's lesson plan is bringing together many of the geometric skills from previous lessons.
Khan Academy
Khan Academy: Decompose Angles
Find an angle's measure when given the measures of its parts. Students receive immediate feedback and have the opportunity to try questions repeatedly, watch a video or receive hints.
Illustrative Mathematics
Illustrative Mathematics: 3.md Three Hidden Rectangles
The purpose of this task is for students to decompose a figure into rectangles and then find the total area by adding the area of all of its smaller, non-overlapping rectangles. Aligns with 3.MD.C.7.d.