Oskar’s Keymaze The goal is to remove the disk by rotating it and matching it with the notches from the key. Created by the prolific puzzle designer Oskar van Deventer, from The Netherlands, who is also the inventor of many Hanayama Cast puzzles.
The American Academy of Pediatrics defines early childhood as the ages between one and five years, encompassing the toddler and pre-school periods. Early childhood development occurs rapidly and is widely recognized as extremely important in setting the foundation for future learning, including the social, cognitive, and motor skills needed to handle the demands of pre-school and kindergarten. During these formative years, parents and other caring people in their lives, have the ability to enhance this development by wisely choosing activities that stimulate and challenge their minds.