This video lesson is perfect for sub plans, class activities, remedial help, or flipping your class. This lesson reviews order of operations. In particular, your students will review... * How to use the order of operations to evaluate expressions * The memory aid Please Excuse My Dear Aunt SallyPlease note that video lesson is intended to review and reinforce order of operations at a more advanced level during the start of Algebra 1. If you are looking for a lesson to introduce this concept for