Flowol Lighthouses don’t all have the same flash pattern  Can you make your lighthouse flash with 3 long and 2 short flashes every 20 seconds? (There should be 1 second between each flash)

Flowol To do this effectively you need to use repetition Let flashes = 0 Is flashes = 3? If No turn lamp on delay 2 seconds turn lamp off Let flashes = flashes + 1 delay 1 second If Yes move on to next part of program

Flowol Repetition allows you to repeat the same action a number of times.  Set up a variable (Let flashes = 0)  Check whether the variable has reached its upper limit  Do the action  Increase the variable by 1 each time

Flowol Key vocabulary:  Repetition  Variable  Loop  Condition  Pseudo code