3Engage students and reinforce essential counting skills with Using Ten Frames to Teach Number Sense for grades K-1. This 64-page full-color reproducible book includes a how-to for using ten frames, as well as lessons and activities for centers and whole groups. Each of the 30 ten-frame mats includes the number 5, 10, or 20 and features whimsical characters and matching counters that enchant learners.