1+1=5 and Other Unlikely Additions

Love this book! It is so clever and sets up a fun challenge in problem solving. I used this with a Super3/Plan, Do, Review lesson.

After reading through the first 4-5 "stories" the kids had to break the code and prepare their own version.  They planned what their "things that come in groups" were going to be, had to rename them for the problem and prove a viabl solution.  They created two pages - one with the math sentence and the 2nd with the explanation.  What fun they had trying to stump their friends.