What's That Shape Worth? contains a set of puzzles that I use with my remedial middle school students. This set of activities teaches students to apply strategies beyond guess and check in order to solve a set of 3 puzzles that are dependent upon each other.
A video of how I use these activities is available on YouTube by searching for the channel Andy DeJong.
There are more parts to come as they are in the development stage (meaning I'm currently trying them out on my students at the moment)
Thanks for viewing and have fun!