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: Students will identify and describe two-dimensional shapes and match similar shapes when given various two-dimensional shapes. Students will also be able to explain the groupings made when sorting.

Materials:

1. Mouse Shapes by Ellen Stoll Walsh
2. Shape Spinner (enlarge this spinner or modify a Twister spinner)
3. Baggie or cup filled with attribute blocks, buttons, and precut triangles, squares, rectangles, and circles in varying sizes (1 baggie per pair or student)

Activity:

1. Read the story Mouse Shapes.
2. Gather students in a circle and pass out shapes. Students can work in pairs or alone.
3. Spin the spinner, and have students hold up the same shape from their baggie

Guiding Questions:

1. If I turn this picture like this, does it change the shape?
2. Were students able to hold up the same shape regardless of orientation or size?
3. Were they able to explain how the shapes were alike?