 When a child has learned some basic shapes, you can help deepen their understanding through sorting. You can give the child some shapes cut from paper, making sure there are a few of each shape. Then you can say something like, can you sort these shapes? See if you can put all of the circles in one group, all the squares in another group, and all the triangles in another group. You can first show them how to do it for one of the shapes. Then they can try sorting the other shapes. Learning to sort by shape will help improve a child's logical thinking.