A blog about teaching and learning in a maths classroom.

Locker Problem

Monday, 06 February 2012 | 1 Comment

I recently used the “Locker Problem” in a Year 7 Maths Enrichment class (mixed ability). Here are some resources I used:

James Tanton’s very timely videos:
Video 1: The Demonstration
Video 2: The Explanation

There’s a widely linked Java applet
The Locker Problem
but it doesn’t work correctly for me (on a Mac).

And another visualization on Connected Mathematics.

This is not an easy problem, but hopefully by looking at the first 10 people, they may pick up on the pattern.

Posted in • Lesson IdeaProblem SolvingMediaVideo | Short URL:


Sir Maths Alot on  08 March 12  at  12:39 PM #
this is a cool puzzle. do u know of any other puzzles i might be able to do with my enrichment kids?

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Simon Job — eleventh year of teaching maths in a public high school in Western Sydney, Australia.
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