Here are the counting/matching centers for September, October, November, and December bundled into one. It contains 180 slides: 45 for September, 45 for October, 45 for November, and 45 for December. Each month contains 15 number slides, 15 number word slides, and 15 10-frame slides. You can use them as a counting center using just the numbers and holiday themed counters, or you can use as a matching game. I have also bundled the spring semester slides!