Elevator Classroom

This activity was a popular Math Center for my students last year. This is an algebraic exercise which can be easily adapted to your grade level’s standards. As students practice different numeracy skills in trying to figure out the mystery lock combination, they also master the commutative property. After students grasp the activity, they can begin making their own secret lock combinations for their peers to solve. The teacher will have to be responsible for changing the locks to the mystery co