I created these to supplement my calendar math program. There are a total of 30 color cards. I recommend you print the colored cards on cardstock and laminate the sheets. Once they have been laminated, cut the cards in the center. You can use a dry erase marker to write on the laminated cards. This allows students to continually practice a skill once a day, even after you’ve moved on to another standard.
Also included are 4 practice sheets and a "Making Arrays" sheet where students can create their own arrays. These can also be used in many ways. You can have students roll dice to find the number of rows and columns. Students can then draw or stamp arrays. A student sample is included.