Children can spend hours on end discovering colours and learning about different shapes with the stack amp sort board by melissa and dougr versatile as well as educational countless games can be made up around this stacking board or you can simply stick to stacking the correct shapes on their corresponding pegr featuresr wooden board with coloured pegr 15 shaped blocks of varying coloursr printed colour shape key on the boardr encourages colour and shape recognitionr develops maths skil