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4. Hungry Alligator Teacher Notes

The Hungry Alligator program is modified to change the Start On Key Press to a Start Block and

to add the motion sensor input. After you click the Start Block, the program waits for the motion

sensor to see something. Then it turns on the Motor That Way to close the jaw and plays

Sound 17, the Crunch sound. Then the motor turns on this way to open the jaw. The motor runs for

seven-tenths of one second and turns off. The program repeats.

To repeat the program a specific number of times, add a number and text input to the Repeat

Block.

See Getting Started for more examples with the Motion Sensor, Motor On For, Motor This Way,

Motor That Way, Play Sound, Repeat, and Wait For.