My DS is working through SM (the OOP Earlybird K books). We've reached a section on number words for the teens and it seems an odd time to teach this. He's reading CVC words and recognizes the words for 1-10, but these are way above his current reading level. My inclination is to skip it and come back later, but I'm curious how others have handled this. Do you skip it and return later, try to have them memorize the words, or something else?