Teddy worked on the doubles fact strategy to help him understand halving and doubling quantities while also preparing for the future strategy on using known doubles facts to find near doubles. We reviewed the doubles facts to 10 and the concept of even and odd. Then, Teddy matched doubles facts to their sums and practiced skip counting by 2s. He finished with subtracting 1, 2, or 3 and adding 1 through 9, fast facts checks.