These slides include an index at the beginning with links to all lessons in the unit. Each lesson follows the curriculum with the number routine, be curious, guided exploration, work together, on my own, and reflection sections. - There are some transitions in the slides. Most of these transitions are to help the teacher with questions or notes about the next strategy for subtraction will be. -There are some manipulatives for the teacher to use during some lessons. These manipulatives, such as