One Strategy for Maintaining a Productive Classroom Environment Is to Keep

One strategy for maintaining a productive classroom environment is to keep students busy and engaged at all times.Three of the following practices reflect this strategy.Which one does not?

A) Ms.Spears makes sure that all the equipment that students need for their science lab is ready for them before they arrive.
B) Mr.Barnard keeps his art lesson moving along at a steady pace.
C) Ms.Carroll takes time out from her math lesson to help Sam with a difficult concept until he thoroughly understands it.
D) Mr.Dunbar plans several simple activities for his students on their first day of kindergarten.