## Lesson: Identifying Shapes and Matching Parts

Developing the Concept

When children have a basic understanding of fractions and equal parts, they can apply their knowledge to learning about probability.

**Materials:** circles, squares, and triangles cut from construction paper; paper bag

**Prerequisite Skills and Concepts:** Children should be able to identify and name plane shapes.

**Preparation:** Have children watch as you place two squares and a circle in a paper bag.

**Wrap-Up and Assessment Hints**

To informally assess the children's understanding of halves, thirds, and fourths, as well as of equal parts, cut paper circles in two, three, or four equal parts. Have children reassemble the circles and identify the number of equal parts for each. Have them write the corresponding fractions.