K4 – 2D Shapes and Sorting

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Class Summary

Reinforcing the math lesson that teaches students to sort objects based on 1 or more attributes like color, size, length, weight, etc. Students should leave the class feeling comfortable with the concept of the differences between objects with shapes prompting them to compare and organize. Students will also learn to create complex designs from basic shapes and identify 2d shapes individually and by name.

Lesson Slide

K4 – 2D Shapes and Sorting

Main Teaching Points

  • Show: A circle.
  • Explain: A circle is a curvy shape with no sides or corners.
  • Show: A triangle.
  • Explain: A triangle is a straight line shape with 3 sides.
  • Explain: Sorting is putting lots of things that look the same together. Sorting keeps things in order.
  • Practice Sorting: Use the Pattern Blocks teaching app to help the students practice sorting different shapes based on color and shape type.
  • Show and Tell: Call on students to show their circle or triangle shaped object and tell the class about it.

Discussion Questions

Questions to Ask About Shapes and Objects

  • Which one is longer?
  • Which one is shorter?
  • What is a side?
  • What is a corner?
  • What shape has no sides or corners?
  • How many sides does this shape have? How many corners?
  • How is this shape different or the same from that shape?

Questions to Ask About Sorting:

  • How many of these buttons are blue? brown? striped? golden?
  • What color are the squares? Circles?
  • How many triangles are blue? pink? green? red?

In-Class Activities

  • Bring A Shape: Tell parents in the description to help students prepare for the class by bringing something shaped like a circle or triangle. Call on students to show their circle or triangle shaped object and tell the class about it.
  • Show a Shape:  Bring in 2D shapes to show the class. Print and cut out relevant shapes. You can access a printable for that by clicking here.