2) Building blocks, developing children's spatial thinking and giving them a good sense of space will make it easy to learn solid geometry.
3) Playing puzzles, from complex to simple, can be combined locally in addition to the whole puzzle, so that children can observe the edges of the puzzle, which can also establish children's spatial concept.
Complex building block games and jigsaw puzzles can also exercise children's practical ability, concentration, observation, spatial imagination and perseverance to overcome difficulties. It has a subtle influence not only on mathematics but also on life.
4) going to the supermarket is something that every child is interested in. In the supermarket, you can also play many games, such as competing with children to see who can find the milk with the latest production date first, which can exercise their reaction ability and observation ability. It can also guide children to pay attention to the law of commodity placement, and how merchants grasp the psychology of consumers and arrange commodities. In this way, children invisibly increase their ability to live.
5) Learn chess, play chess and go. Board games are helpful to improve the reasoning ability of geometric proof. In the process of playing chess, children think about the next step, the next two steps, and the next three steps to win chess. This thinking process is like the derivation of proof questions.
6) Play an intellectual game (Olympiad), such as making a rectangle, square, circle or triangle with a rope of equal length to determine which area is the largest. Children can draw conclusions through their own experiments. I don't understand why there is such a conclusion. As long as it is the child's own result, I will be extremely excited and will remember it firmly. When children systematically learn mathematics knowledge, they will have a sense of familiarity and accomplishment. You will be confident in this respect.