Create composite shapes by:
Making a two-dimensional composite shape using rectangles, squares, trapezoids, triangles, and half-circles naming the components of the new shape.
Making a three-dimensional composite shape using cubes, rectangular prisms, cones, and cylinders naming the components of the new shape.
Step 1: Lesson Standards & Learning Goals
The goal of this standard is for students to explore how shapes fit together to create new shapes, as well as notice which shapes are components of an existing shape.
In this standard, students create composite two- and three-dimensional shapes. Students are expected to name the composite shape, if it is a shape that is common to first grade students, as well as the component shapes that they used to make the new shape.
The table provides some ideas on some composite two-dimensional shapes and how they can be formed by component shapes. The table below provides some ideas on some composite two-dimensional shapes and how they can be formed by component shapes.
How can I create a larger shape using two or more smaller shapes?
How can we combine simple shapes to create more complex shapes?
What strategies can we use to recognize and identify the component shapes within a composite shape?
What are the fundamental (basic) geometric shapes, and how can we combine them to create new shapes?
compose
composite
three-dimensional shape
two-dimensional shape
Compose new 2D and 3D shapes by combining two or more basic shapes.
Describe how composite shapes are formed by combining simpler shapes.
Understand the concept of composing shapes as a fundamental aspect of geometry.
Communicate using mathematical language to describe the composition of shapes.
Combining simple shapes can create a new shape or figure.
The concept of composing shapes involves combining two or more basic shapes to create a new shape.
Shapes can be rearranged or combined in different ways to form new shapes.
Recognizing the component shapes within a composite shape helps in understanding its structure.
Step 2: Assessment
Step 3: Lesson Instructions
Exploration or Experience
Give students a collection of shapes and ask them to create a new shape.
Video Clip
Tools 4 NC Teachers
Cluster 6 Lessons
Math Expressions - (Barnes and Hearne) - Standards Alignment
Motivation Math
Think Up! Math
Khan Academy - 1st Grade Math
Eureka Math/Engage NY Free Resources
G1 M5 Topic B: Part–Whole Relationships Within Composite Shapes
Zearn Math - Online Support Practice for Eureka Math (Requires free account)
North Carolina Collaborative for Mathematics Learning - Grade 1 Instructional Framework
NCDPI Resources
Grade 1 Math Assessment Practice Prompts
