Please find below link to freebie addition strategies poster, tools for making 10, part-part-whole tools, and worksheets to practice the strategies listed. VIDEO: For the BEST understanding of how to teach addition (and subtraction), refer to Making Sense Series: the progression of addition AND subtraction, the standard traditional algorithm from Graham Fletcher at https://vimeo.com/157768846. Also can be found at https://gfletchy.com/progression-videos/. VIDEO: More basic addition using a num
