Playdough Number Mats: These color masters can be used as a math center activity for practicing number concepts using ten frames. Tucked into a clear plastic sleeve/cover for protection from playdough work, they provide both cognitive and fine motor skills practice. The mats also double as write-and-wipe number mats. They can also be written on directly for home schoolers, or in school for seat work, homework or a group activity at the circle or carpet. These math mats reinforce kindergarten Common Core math standards.