NC.K.G.4
Analyze and compare two- and three-dimensional shapes, in different sizes and orientations, using informal language to describe their similarities, differences, attributes and other properties.
Embedded Files
Step 1: Lesson Standards & Learning Goals
In this standard, students are expected to compare two-dimensional shapes to each other and three-dimensional shapes to each other using informal language. Teachers should reference the table provided in NC.K.G.2.
Two-dimensional shapes: Kindergarten students are expected to count the number of sides and corners (vertices) that each shape has. They should be able to point to the corner (vertex) as the point where two sides meet each other. They should also be able to distinguish between shapes that are squares compared to rectangles where a square has four sides that are always the same length and rectangles have opposite sides that are always the same length. *Avoid describing rectangles as having 2 long sides and 2 short sides since that is not always the case.
Three-dimensional shapes: Faces of three-dimensional shapes can be identified as specific two-dimensional shapes. Identifying the number of edges and vertices on a three-dimensional shape is not an expectation of kindergarten.
Sample Essential Questions
Sample Essential Questions
How can I compare/contrast 2D (flat) shapes using their attributes?
How can I compare/contrast 3D (solid) shapes using their attributes?
What is the difference between flat shapes and solid shapes?
How can we describe the differences in appearance between 2d and 3d shapes?
Vocabulary
Vocabulary
2-dimensional
3-dimensional
alike
attributes
compare
corner
curves
different
face
flat
lines
round
sides
solid
straight
surface
straight
vertices/vertex
Students will be able to...
Students will be able to...
Describe two-dimensional shapes by telling the number of sides and corners (vertices) that each shape has.
Identify the point (vertex) where two sides meet.
Compare and contrast shapes using informal language. (See Shape Notes for language expectations.)
Compare and contrast shapes of different sizes and orientation using informal language. (See Shape Notes for language expectations.)
Distinguish between a square (4 equal sides) and a rectangle (opposite sides equal).
Identify faces of a three-dimensional shape as specific two-dimensional shapes. (Ex. Each face of a cube is a square.)
Use informal language to discuss the attributes and properties. (Ex. curvy, round, straight, long, short, number of sides, number of vertices, number of faces)
Students will know...
Students will know...
The number of sides, length of sides, and number of vertices distinguishes one shape from another.
The vertex (corner) is the location where two sides meet.
The length of sides is an important attribute when distinguishing between shapes.
Faces of three-dimensional shapes can be identified as specific two-dimensional shapes.
The name of the shape is the same regardless of size and orientation.
Step 2: Assessment
Tools 4 NC Teachers
Tools 4 NC Teachers
Step 3: Lesson Instructions
Possible Activating Strategies
Possible Activating Strategies
Exploration or Experience
Provide students with shape images or manipulatives of two different sizes. Ask them to analyze and compare the two shapes.
Think-Pair-Share
Provide students with a square and a cube. Ask them to think about the two shapes and notice the differences and similarities. Then, share with their partner or group.
Read Aloud: The Greedy Triangle by Marilyn Burns
Teacher Resources
Teacher Resources
Tools for NC Teachers
Cluster 4 Lessons
Math Expressions - (Barnes and Hearne)
Motivation Math
Think Up! Math
Eureka Math/Engage NY Resources
Embarc Online (Eureka Math)
Zearn Math - Online Support Practice for Eureka Math (Requires free account)
North Carolina Collaborative for Mathematics Learning - Kindergarten Instructional Framework
NCDPI Resources
Kindergarten Math Assessment Practice Prompts
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