# Decomposing Shapes Resources

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Decomposing Shapes
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Kindergarten Independent Study Packet - Week 3
Workbook
Kindergarten Independent Study Packet - Week 3
Week 3 of this independent study packet for kindergarteners features targeted practice opportunities in reading, writing, and math.
Kindergarten
Social emotional
Workbook
Kindergarten Math Essentials
Workbook
Kindergarten Math Essentials
This workbook covers familiar kindergarten math topics from counting to easy addition problems.
Kindergarten
Math
Workbook
Preschool Math
Workbook
Preschool Math
This workbook gives preschoolers a fun introduction to simple math concepts.
Preschool
Math
Workbook
4th of July Shapes
Worksheet
4th of July Shapes
The 4th of July celebration is full of stars, stripes and many other shapes! Can your child find all the shapes in this festive coloring page?
Preschool
Math
Worksheet
Shapes Inside Shapes
Lesson Plan
Shapes Inside Shapes
Look all around! We can find 2D shapes inside 3D shapes wherever we go! In this lesson, students will sort shapes and recognize the 2D components of common 3D shapes.
Kindergarten
Math
Lesson Plan
Basic Shapes
Workbook
Basic Shapes
Circles, squares, diamonds and polygons; this book focuses on the most basic ones, and some silly shapes too. Kids can trace, draw and match shapes to the heart's content. Hey that's a shape, too!
Preschool
Math
Workbook
First Grade Fall Review Packet - Week 4
Workbook
First Grade Fall Review Packet - Week 4
This final installment of our First Grade Fall Review Packet offers five more days of fun and diverse learning activities to prepare children for their first grade year.
Workbook
Find the Shapes!
Worksheet
Find the Shapes!
This 4th of July picnic is full of shapes! Help your preschooler learn to identify circle, stars, triangles and squares that are hidden in this scene.
Preschool
Math
Worksheet
Count On It!
Workbook
Count On It!
In this workbook you'll find everything preschoolers need to practice counting.
Preschool
Math
Workbook
Lesson Plan
Students will get hands-on experience manipulating shapes in this preschool-friendly activity. With the help of shape blocks and worksheets, little learners will get the hang of squares, triangles and rectangles in no time.
Preschool
Math
Lesson Plan
Make Art Like Mary Blair
Activity
Make Art Like Mary Blair
Reinforce your child’s understanding of geometry and 2D shapes while learning about the artist Mary Blair and her amazing contributions to many loved movies, books, and characters throughout her career.
Preschool
Math
Activity
Crazy for Shapes
Workbook
Crazy for Shapes
This workbook helps kindergarteners learn their shapes through tracing, sorting and matching activities.
Kindergarten
Math
Workbook
Tangrams: An Ancient Chinese Puzzle
Lesson Plan
Tangrams: An Ancient Chinese Puzzle
How do you build spatial reasoning, critical thinking, and problem solving skills while doing something that is fun? With tangrams! In honor of Chinese New Year, this lesson introduces your students to the Chinese puzzle of tangrams.
Kindergarten
Math
Lesson Plan
Recognizing the Rainbow
Workbook
Recognizing the Rainbow
These fun and interactive worksheets introduce kids to primary and secondary colors, so they can identify them by sight and name.
Kindergarten
Math
Workbook
A Place for a Shape
Lesson Plan
A Place for a Shape
Detective time! In this lesson, your students will become shape detectives and go on a shape hunt to find the missing shapes on a grid.
Preschool
Math
Lesson Plan
Finding All of the Flat Shapes
Lesson Plan
Finding All of the Flat Shapes
2D shapes are all around us! In this lesson students will explore the properties of four different shapes—triangles, circles, rectangles, and squares! They will learn that they can find these shapes anywhere in the world around us.
Kindergarten
Math
Lesson Plan
Shape Up
Workbook
Shape Up
Circles, triangles and squares, oh my! Help your little learner identify, describe and color a variety of shapes in this workbook, focused on introducing your child to basic math concepts.
Kindergarten
Math
Workbook
Celebrate the Seasons: Language Arts
Workbook
Celebrate the Seasons: Language Arts
From St. Patrick's Day to Christmas, this seasonal workbook takes your kid through a year of weather and holidays, while boosting language arts skills.
Kindergarten
Math
Workbook
Find the Hidden Objects: Teacups
Worksheet
Find the Hidden Objects: Teacups
Combining coloring, counting, and a hidden picture puzzle, this worksheet is sure to keep your preschooler entertained.
Preschool
Math
Worksheet
Stars & Stripes Activity Book
Workbook
Stars & Stripes Activity Book
Salute the Flag with this workbook featuring America the beautiful. Tracing, coloring, counting and games are themed in honor of the Fourth of July.
Preschool
Workbook
Quizzical Shapes
Lesson Plan
Quizzical Shapes
Shapes, shapes everywhere! In this lesson, your students will identify shapes and differentiate between the geometrical figures. They will also learn about sides and angles in every shape.
Kindergarten
Math
Lesson Plan
Lesson Plan
Students will love composing shapes using tangrams in this hands-on lesson! Use this plan alone or as a support lesson plan for the **Tangrams: An Ancient Chinese Puzzle** lesson plan.
Kindergarten
Math
Lesson Plan
Composing Shapes
Lesson Plan
Composing Shapes
Students will love composing and decomposing two-dimensional shapes using tangram puzzle pieces. Use this plan alone or to frontload key vocabulary and concepts taught in the lesson plan **Know Your Shapes.**
Math
Lesson Plan
Color a Tangram Template
Worksheet
Color a Tangram Template
Build reasoning and logic skills with a fun geometric shapes puzzle!
Kindergarten
Math
Worksheet
Shape Search: Ice Cream!
Worksheet
Shape Search: Ice Cream!
Not only does this hidden shapes worksheet help preschoolers recognize squares, it also doubles as a coloring page!
Preschool
Math
Worksheet

### Decomposing Shapes Resources

Little learners become shape-shifters as they search for and manipulate 2-D shapes. There are several tangram activities, which are a hands-on way to teach preschool and lower elementary students basic shapes, including squares, circles, and triangles. These activities develop early geometry skills as students decompose and reconstruct a variety of shapes. Handouts keep things fun with coloring. For a review, visit our 2-D shapes resources.
Once students understand two dimensional shapes and their attributes, such as lines, angles, and vertices, they will be able to expand on their geometric understanding by beginning to decompose shapes. Decomposing shapes is the process of breaking particular shapes into other shapes.
Given a large geometric shape, students are asked to break it up into smaller, known shapes. These large shapes can be known shapes themselves or simply abstract shapes. For example, a rectangle with the dimensions of 1 unit by 2 units could be broken up into two squares, each 1 unit by 1 unit. Each of those two squares could be broken up into two right triangles, each with legs 1 unit long and sharing a hypotenuse that bisects the square.
Decomposing abstract shapes allow the students to see known shapes in a larger plane. This will teach the students that there are many ways to decompose shapes. This also shows them how to determine the area of abstract shapes. Once they learn the formula to determine the area of known shapes, breaking an unknown shape into known shapes with known dimensions will allow them to determine the area of all of the known shapes and sum them to determine the total area of the abstract shape.
Using the resources provided by Education.com above may help students begin to understand how to decompose complex shapes into simple ones and lay the foundation for learning that three dimensional shapes consist of many two dimensional shapes.