We had a great hands-on three-part math activity to practice prime factors that kept my students engaged from beginning to end. Our lesson covered prime and composite numbers, factors, and prime factorization. We started with a fun review on the smartboard, engaged in some deep math conversation during on paired minds-on-math, and finished with a very productive bansho activity. Want to read a little more about it, and find out how we figured out what was in this bag? Head on over to my blog to read more about it.