Piaget indicated infants should be provided with opportunities to explore the world. to accomplish this task, piaget would suggest that

Piaget would suggest that children learn by doing and they need the opportunity to explore and probe their environment.

It's almost impossible to know what learning method would be most suitable for the children in early years because their brain still haven't got the capability to understand an abstract concept. The best way for parents to do in this situation is to step back and let the children explore the world and learn on their own