From the book: "Draw a diagram that shows how the sequence of odd numbers can be used to produce the sequence of squares. The diagram can contain numbers, addition symbols, equal signs, and arrows, but it should not contain any words. Your goal is to draw the diagram so that anyone who knows how to add whole numbers can look at it and see the relationship between the numbers in the two sequences."
1, 3, 5, 7,... The sequence of odd numbers
1, 4, 9, 16,... The sequence of squares
Here is my answer. What do you think? Is this a clear diagram? Would you have done it differently?