Math Word Problems Demystified - A Self Teaching Guide

Since there are seven intervals, the distance between the first and last

one is 7 2 ¼14 feet.

EVALUATION: The figure shows that 14 feet is the correct answer.

EXAMPLE:Three coins are tossed; find the total number of ways they

could fall.

SOLUTION:

GOAL: You are being asked to find the total number of ways 3 coins can fall.

STRATEGY: Draw a diagram showing the way each coin can land, that is,

heads up or heads down.

IMPLEMENTATION: Each coin can land in two ways: heads or tails.

See Figure 21-2.

Fig. 21-1.

Fig. 21-2.

260 LESSON 21 Using Other Strategies