# Surf for More Math

## Lesson 4 - Doubling

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

**Goal **

Relate multiplication facts using a doubling
strategy.

**Builds Upon **

Student Book pages 226-227

**Instructions for Use**

Double
the Donuts helps students visualize a doubling strategy.

To use Double the Donuts, click on the 'Double
It' button to see how the number of donuts increases. Notice the chart
at the right of the program to see how quickly the number of donuts
double.