# Surf for More Math

## Chapter 7: 3-D Objects and 2-D Shapes

**Lesson 4: Copying Hidden 3-D Structures **

Use these interactive activities to encourage students to have fun on the Web while learning about 3-D objects and 2-D shapes. Students can try these activities on their own or in pairs.

**Goals**

Copy and describe a composite 3-D structure.

Predict, then verify, the 3-D objects used to produce a given composite 3-D structure.

[C, PS, V]

**Instructions for Use**

**Describing 3-D Shapes** provides an introduction to 3-D shapes, their names, properties and nets. Use this on an Interactive Whiteboard to simply to show students shapes and ask them to replicate certain shapes using toothpicks and marshmallows or pasticine.