Prekindergarten: Unit PK.G.A.1-2, Identify and Describe Two-Dimensional Shapes (circles, triangles, rectangles; including a square which is a special rectangle)

Domain:Geometry
Unit/Cluster: Identify and describe two-dimensional shapes (circles, triangles, rectangles; including a square which is a special rectangle.)
Standard(s):
PK.G.A.1: Match like (congruent and similar) shapes.
PK.G.A.2: Group the shapes by attributes.

Purpose/Big Idea: Use Students will use geoboards to create shapes that are congruent or similar to a given shape.

Materials:

1. Geoboards
2. Rubber bands
3. Shape Picture Cards
4. Virtual Geoboard example,

Activity:

1. Use the virtual geoboard to demonstrate making shapes.
2. Demonstrate using geoboards and rubber bands to create shapes.
3. Allow students time to explore the geoboards on their own.
4. Show students the shape picture cards, modeling how you can copy the shape onto the geoboard.
5. Allow students time to explore the geoboards, using the shape cards to create congruent or similar shapes. Note: students do not need to use the word ‘congruent’ and ‘similar’ when they discuss their shapes

Guiding Questions:
For observation:

1. During exploration, do students create shapes with rubber bands? Are they able to identify the shapes?
2. Are students able to copy like or congruent shapes?