Family Math Night What Do You Notice? Poster
So for this What Do You Notice? poster, I decided to tie in rectangular arrays with prime and composite numbers. That said, whatever math-y thing students notice is totally acceptable. For example, one student noticed that the “buildings” had square windows. Great. That’s a little bit of geometry. Another student noticed that each set of colored rectangles included the same number of squares. Again, great, as that required some counting and comparison. Just like the student who noticed that there are…