Unit 2 - True or false Number Sorts! This could be used for many different concepts.Love the sorting chart idea Extend by having students put in the correct sign. They have to do this on SOAR all the time.
'Marvin the addition monster' Pick a card (visual reps on cards) and put corresponding number ring on Marvin's horn. Put correct amount of blue counters down one horn, and yellow down the other. Open Marvin's mouth and you've got the total.