Common Core Math- 1.OA.3, 1.OA.4, 1.OA.6, 1.OA.7, 2.OA.1, 2.OA.2
As teachers have been asking "How do I teach these subtraction strategies?", I realized that in order to do this, we really need to build that conceptual understanding of subtraction. As a result, I started developing some videos to model how this might rolllout in the classroom.
This is the first video in a series of subtraction videos that would help teachers in Grades 1-2 teach subtraction in a way that really embeds the mat