3rd Grade Math Tic-Tac-Toe Challenge Boards with Answer Keys | CCSS-Aligned Gifted & Enrichment BundleTake student learning beyond the basics with this bundle of Tic-Tac-Toe Challenge Boards designed to deepen, extend, and enrich third graders’ understanding of key Common Core math standards. Each board offers 9 engaging, open-ended tasks that promote critical thinking, creativity, problem-solving, and inquiry — perfect for gifted learners, early finishers, and math enrichment. Every board