Measure the lengths of a friend’s nose and arm. Find the ratio of these measurements. How does this ratio compare to yours?

Measure the length, width, and height of a Hot Wheels™ car and a real car. Does the Hot Wheels™ appear to be a scale model?

You can use similarity and scale to enlarge a picture. Select a simple cartoon. Draw a square around it, then use horizontal and vertical lines to divide the square into 16 smaller squares, as shown in the first diagram. Now draw a larger square, also divided into 16 smaller squares. In each cell in the larger square, draw the corresponding part of the figure in the cartoon.

For example, in the large grid, cell B1 is the reproduction of cell B1 in the small grid. Try this method to enlarge a cartoon.