Sun clock that helps with telling time. This is a cute and easy way for kids learning how to tell time, because it is right under the clock and the rays represent the 5 minute intervals and that can make it easy for kids.
This is how all schools should teach Maths - using Legos
Unifix cubes are a concrete representation of addition/number bonds. Building the bond with the Unifix cubes is what develops number sense. Great use for flash cards instead of looking for just memorization