Number Puzzles & File Folder Activities 1–20Build strong number sense with this engaging, hands-on math resource! Students practice matching numbers, number words, dots, and ten frames using puzzles and interactive file folder activities. This versatile resource is perfect for math centers, small groups, and independent practice. What’s Included: Number puzzles (numbers, words, dots, ten frames) File folder matching activities Visual counting and number recognition tasks Numbers 1–20 10 bla