SamizdatMath

This is a very fun and motivating activity that can be done in 1 - 2 class periods, along with homework. It tells the story of an intern at a website who figures out a way to "hack" his burrito to almost twice the size by ordering "half-portions" of items like red and black beans, chicken and beef, and white and brown rice. The activity looks at how hacking each ingredient adds to the weight of the burrito through the number of additional ounces and how those additional ounces can be written as

Stop That Rat! ? Why would anyone want to "stop that rat?" Well, because it's really fun to watch your students work on this puzzle, which comes in gritty color as well as black and white. 63 pages of rat fun! Seriously, the basic puzzle is simple: take the disks which are numbered 1 - 6, and arrange them on the board so that each side adds up to 9. However, things get very interesting when you find out that you can re-arrange the 6 numbers to add up to 10, 11 and 12. But it gets better than th