This calendar can be used for the month of February. Each day covers a different CCSS math standard for 1st grade. I recommend making a copy for each students and having students solve the problems in a math journal. If you have a smart board or promethean board the calendar could be projected on the board and students could just complete the problems in their journal. This could also be a homework calendar where the students take the calendar home each night and complete one problem a night.