Another worksheet from my file cabinet. I don’t know what grade it was intended for, possibly second grade? It was probably inspired by Bob Wirtz. At any rate, it is in his style.
I’m not sure what the main purpose of the activity was: practice with basic addition and multiplication facts? Introducing a visual representation of multiplication? all of the above?

(The “ditto” was the duplication technology that preceded the photocopy.)
Note that the first three problems on the ditto were completely open, which allowed students to experiment with their own drawings. After that, the sum was given, which narrowed the focus.
— Henri