Had when i worked in a preschool and kids love them! I would use colored sand instead of white salt. DIY salt tray with alphabet cards. Easy to make and kids have fun smoothing out the salt after correctly making the letter
Learning Shapes With Toy Cars. Create your own shaped road tracks using black sandpaper. Teach your toddler or preschooler their shapes with a triangle, square, circle, rectangle, pentagon and octagon road track.