This resource has 20 instruction, large dominos plus four math worksheets. I love using the instruction dominos to teach vertical addition. First showing the domino and addition fact in sentence-form then turning the domino and demonstrating how to write and solve it vertically. This set also has four math worksheets. One worksheet focuses on counting and writing numerals. The other three are addition worksheets; addition to 5 & addition to 8, adding doubles to 10.