Mathematics 4

# Lesson 3 - Making Skeleton Models

To encourage your child to have fun on the Web while learning about Making Skeleton Models, here are some games and interactive activities they can do on their own or in pairs.

### Goal

Building 3-D skeletons and describe relationships between edges and vertices.

### Builds Upon

Student Book pages 298-299

### Instructions for Use

Getting to Know Shapes prompts your child to describe 3-D shapes.

To use Getting to Know Shapes, click the 'Click to use the Tools'. Click 'New Shape' to select a shape. Rotate a shape by dragging the mouse across the surface. Click the 'Transparent' box to show a skeleton model of the shape. Use the slider to increase and decrease the size of the object. Record your answers to the questions in the chart.

Studying Polyhedra helps your child see the relationships between faces, edges, and vertices.

To use Studying Polyhedra, c lick on the buttons: 'F=4', 'F=6', 'F=8', 'F=12', 'F=20' to select the number of faces of the object. Use the   pull-down menu to select a color model, light model, metal model, wire model or wire model. Click the 'Move' button to rotate the object yourself.