I found this lesson on handsonmath.blogspot.com/2009/12/play-doh-algebra.html I would not recommend buying the lesson since the pictures above give you enough detail on what a lesson you could create on your own using Play-Doh and a few math problems.
I wouldn't recommend someone do an entire lesson with Play-Doh since it can get messy from time to time. But it is a great idea for students to be engaged when learning algebra and for students who like to use their hands when learning. Since it only involves two different materials it is easy and a great way for students to be excited about math!
Play Doh math is a