When a child is three years old, it is the golden age of brain development. We should grasp early education quickly. It's good to teach small steps at home from an early age. My child took a small step when he was over one year old. He takes small steps and plays games every day, so that children can learn knowledge in the process of playing. Now children have become what neighbors call "other people's children". In this process, the children learned happily and I enriched a lot.