Lakeshore Learning Accelerate Math! - Simple Addition ActivityTake addition skills to new heights with this engaging, transportation themed math centre! The set includes 30 activity cards designed in three progressive levels to build students' addition abilities. The first level provides completed equations with visual cues. As students progress, they tackle problems with missing answers while still having visual support, and then advance to unguided independent problem solving. Using 50 plastic airplanes and 40