It will be better if the teaching materials for early education are biased towards children's intellectual development. Montessori early education is the most famous one at home and abroad, but it is not cost-effective for ordinary families to buy 20,000-30,000 Montessori early education textbooks. If I suggest that you go to Tmall to search for the excellent thinking training machine, the excellent thinking training machine is an electronic product developed based on Montessori early education teaching materials and teaching AIDS, which contains what children aged 2-6 need.