If you want your kids to promote thinking skills, and encourage class participation, these 56 Colorful, Illustrated Cards (2 1/2" x 3 1/2") What Would You Do At School If... are what you need
I found 14 customer reviews at the time of writing and they had awarded the What Would You Do At School If... Fun Deck Cards 4.5 stars out of a possible 5 on average.