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Lesson Plan

Shape Sort

Sorting takes on a new challenge for students in this activity which engages their critical thinking skills. As students determine defining attributes, they’ll figure out what makes a shape a shape!
Grade:
First Grade
Subjects:
Math
Geometry
Two-Dimensional Shapes
Classifying Two-Dimensional Shapes
View aligned standards
1.G.A.1

Learning Objectives

Students will be to distinguish between defining attributes and non-defining attributes of shapes.

Introduction

(5 minutes)
  • Call students together.
  • Ask students to think of a triangle in their mind. Have students draw this triangle on a sheet of paper.
  • Hold up several of the students’ drawings. Ask students if all of the triangles look the same, what all of the triangles have in common, and what some differences are between the triangles?
  • Inform students that they have just identified some of the defining and non-defining attributes of triangles. All shapes have defining attributes and today they will be on a mission to figure out what these attributes are.