Unit 2 Contents

Use square-inch tiles to make 4 or 5 runways for your kind of airplane. Decide how long to make your runways. You might make one runway 1 inch long, another 2 inches long, and another 4 inches long. Or, you might make runways 2, 4, and 8 inches long. However, do not make runways that are longer than 12 inches or you may have trouble graphing your data. Discuss with your group how long your runways should be.

4. Make your runways. Find the length and perimeter of each runway. Keep track of your data in a table like this. Use the Perimeter vs. Length Table on the Exploring Perimeter vs. Length pages in the Student Activity Book or make one similar to the one below.

1. Write a number sentence to show how you found the perimeter of each runway.
2. Write the ordered pairs in the last column.

6. Draw a point graph for your data on Centimeter Graph Paper. Put Length (L) on the horizontal axis and Perimeter (P) on the vertical axis. (Remember to include a title for the graph, label the axes, and include units.)
7. Look at your points on the graph. Describe your points.
8. If your points form a line, use a ruler to draw a line through your data points. Extend the line in both directions.