Another way to boost a kid is to have the right device or preschool worksheets in developing their psychological ability. We shouldn't undervalue their tiny brain by assuming that it's not time for them to learn such points. Ages 3-6 are just best years for them to get knowledge and education. Fundamental things such as forms, shades, countings, letters and also noises are easily recognize also by young children.
In pre-schooling your children need to be according to their speed. Instruct them according to their capacity. This way, we can prevent them from being stress. Tension can disable their learning abilities.