📹 WATCH: Rylee, a first grader, is asked to name number pairs for seven. The goal at this level is to learn all the number pairs that make six and seven, as well as to begin thinking about these combinations strategically, not by memorizing. Find more than 50 classroom videos just like this one in our newest publication, Math Trajectories for Young Learners. This book gives PreK–2 teachers a clear roadmap for identifying where each child is in their math journey and selecting the next instructi