# Surf for More Math

## Lesson 5 - Communicate About Estimation Strategies

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

### Goal

Explain estimation strategies to determine if a solution is reasonable.

### Builds Upon

Student Book pages 258-259

### Instructions for Use

The
Comparison Estimator** **provides your child with opportunities
to practice estimation skills. Your child can compare amounts by estimating
the number of objects in two boxes.

To use the Comparison Estimator, set the problem type to 'Random'. To
answer a question, choose an item from the pull-down menu that best completes
the sentence - "greater than," "less than," or "almost
the same as." If you choose "almost the same as," the two
shapes must be within 5% (either above or below) of the actual answer.
Click the 'Check Answer' button to see if it is correct. Try the next
question.