Pi Day Collaborative Coloring Poster | Math & STEM Classroom Activity Celebrate Pi Day (March 14) with a collaborative coloring poster that highlights π, circles, formulas, problem-solving, critical thinking, and math exploration. Students work together to build a large mural featuring Albert Einstein, geometry symbols, numbers, and STEM themes, reinforcing the beauty of mathematics. This low-prep activity supports math engagement, teamwork, growth mindset, inquiry, and student voice throug