Pygmalion Early Childhood Development Course - Grade 4 ※DVD only ※(1) 1 disc (2) 1 disc (3) 2 discs (4) 2 discs Full set This is the time to nurture a high level of reality recognition. Basic concepts of time and length, which are not taught in school, and the ability to grasp structure will develop. This is a summary of the Early Childhood Development Course, cultivating judgment, thinking skills, and problem-solving abilities.