🎄 CHRISTMAS MATH COLLABORATIVE POSTER (30 PIECES)Color-by-Answer • Addition & Subtraction • Pixel Art Christmas MuralMake your December math lessons fun, festive, and fully collaborative with this 30-piece Christmas Math Collaborative Poster! Students solve math problems, color their pixel squares using the Color-by-Answer Key, and then combine all 30 pieces to create a giant Christmas mural featuring Santa, elves, a Christmas tree, presents, and snowflakes. Perfect for Grades K–3, whole-c