You can buy some picture books for your children, tell them some short stories about mathematicians before going to bed at night, and cultivate their interest and enthusiasm for mathematics learning!
In life, you can solve some simple things through some small games or use mathematics to guide children's independent thinking ability and logical thinking ability! After children have a certain concept and understanding of "number", they can sign up for professional training courses in mathematical thinking, such as the recently popular Spark Thinking course, which is quite suitable!