# Surf for More Math

## CHAPTER 9: 2-D SHAPES

**Lesson 7: 2-D Puzzles **

Use these interactive activities to encourage students to have fun on the Web while learning about 2-D shapes. Students can try these activities on their own or in pairs.

**Goals**

Identify attributes of 2-D shapes.

Create a model of a given 2-D shape.

Compare and match a given 2-D shape with the faces of 3-D objects.

[CN, R, V]

**Instructions for Use**

**Geometric Solids** allows students to view and explore the faces of 3-D objects.

To use Geometric Solids, click on New Shape. To rotate the object, click on the object and drag it so you can view the different faces.

**Prisms** has students determine the number of many faces, vertices, and edges different prisms have.

To use Prisms, select one of the five prisms. Click on the diagram of the prism to rotate it. Enter the number of faces, vertices, and edges to the right. Click Check.

**Pyramids** has students view the shape of the faces of pyramids.

To use Pyramids, click on one of the pyramids to rotate it. This allows you to view each face and determine its shape.