❄️ Winter Mystery Math Bundle | Problem of the Week | December, New Year’s Eve, February Keep your students engaged all winter long with this Winter Mystery Math Bundle! Perfect for grades 3–5, this bundle combines three seasonal packs — December Mystery Pack, New Year’s Eve Mystery Pack, and February Mystery Pack — for 12 weeks of fun, standards-aligned math enrichment. Students solve one Problem of the Week in each set, uncover a mystery clue, and use all the clues to crack the final case