No need for a diagram, I feel it’s dumb and can be summed up really quickly. If your job is to teach, and you instead require additional time, perhaps schedule more classtime instead of outsourcing the step by step instruction part to the children’s parents (requesting they teach a method they were never taught… looking at you common core bs). If the math lesson requires more instruction, make the finger-painting the homework, or plan the lessons to include time to reinforce the concepts.

Just a personal opinion though.