The distributive property can be shown through 4 different representations. The 4 pictures show the distributive property as multiplication, area model, bar model and repeated addition.
Students don't always see what we see? What do they see? Ask students to sort the line cards into 2 different groups. What are the characteristics of each group? You'll be amazed at what kids see first--it probably is NOT slope and y-intercept, but they will learn to tune in to these two key features.