Numbers and shapes
Build boats out of recycled materials.
The focus is on numbers, counting and various representations of numbers.
Lids, sponges, plastic containers, popsicle sticks, straws, stickers, buttons…
Build boats. Let them each represent a number or use dices to decide on the numbers. If you want the boats to be able to sail afterwards, make sure they can float.
If the boats each represent a number line them up in order or reverse order.
You can also play race the boats. Use dices to determine which boat is allowed to move one step forward.