This shape sorter comes with five square blocks of of varying sizes, in five different colorsRecognize each colorUnderstand that each block is a different size (concept of small, big, bigger)Each square block has two cavities for shapes - one on top and the other at the bottomThere are four basic shapes rectangle, triangle, circle, and squareRecognize all the shapesNow comes the fun part! First, match the shape to the correct cavityOnce done, match the cavity of the bottom of the square block and place it on top of the shapeKeep at it till the whole tower is completeVery educative, challenging, yet fun! Teaches children colors, sizes and shapes while they improve hand & eye coordination, logical thinking and cognitive development