## Tag Archive for k-12

###### I’ve been wanting to post this problem for a long time. I don’t know why I’m so lazy.

##### Problem:

###### Suppose you have a 5 x 5 peg lattice board like one on the right:

###### Without injuring yourself or others, how many rubber band squares can you make on the board?

##### Challenge:

###### How many rubber band squares can you make on an N x N peg lattice board?

##### Geoboard:

###### The picture above is a screenshot of the Geoboard app.

This app is a: