Today we looked at a problem involving lockers. The scenario was:
1) Josh opens 200 lockers. (or in our case cupboards at the front of the class)
2) John comes along and closes every second locker.
3) Julia arrives and changes the position of every third locker (If the locker is open, she closes it, if closed, she opened it.)
4) Lucas changes the position of every fourth locker.
5) Ben changes every 5th...
6) Shai changes the 6th etc. etc. etc.
A pattern emerged! 1, 4, 9, 16, 25, 36 - THE PERFECT SQUARES!!
Homework:
Prime or composite sheet (front side only) - due Friday.
