Learn the names of shapes with this free rainbow matching game that is designed for a sensory bin. This is a great activity for a geometry center! To use: Hide the cards with the shape pictures in the sensory bin, then the students can find them and use the mat to match them to the black and white picture with the word underneath. This matching game can also be fun without the sensory bin or in a file folder! The shapes included are: triangle, heart, square, oval, rectangle, trapezoid, crescent