Origami Jumping Frog
Fold it in five minutes, then race it across the table for half an hour.
A cupboard of containers and lids that do not match. Sort it out.
A real problem in every kitchen, solved by a four year old who finds it genuinely satisfying.
Matching by shape and diameter, then nesting by size, involves comparing several attributes at once. Children stay with this longer than an equivalent toy because the cupboard is genuinely improved at the end and they can see it.
Clean containers only. No glass.
The activity is the cleanup.
Fold it in five minutes, then race it across the table for half an hour.
A real job, done properly, by someone who is four.
Reach in, feel one object, and describe it without naming it.
One box, one slot, and a toddler who will not stop posting.
Three designs, one tape measure, and an argument about which flies furthest.
Kitchen roll tubes taped to a wall, and a marble that keeps falling out.