I would like your thoughts. Below, is a copy of my first grader's homework from earlier this week. This lesson is teaching students the terms "before", "after" and "in between" as they pertain to math. Now because my daughter is perfect and is working on fine tuning her calculus skills,(please know that I am kidding) this homework was not a problem. However, as I was looking at it more closely, I see that the number line lists only even numbers.