This time the chess pieces are round pancake-shaped, the kind that can make a "pop-pop" sound when playing chess. His chess addiction came back, but unfortunately he didn't recognize the words on it. I tried my best to teach him how to connect the pictographic characters on the chess board, such as "rook, horse, elephant", with the shapes of real objects, hoping to take the opportunity to let him recognize a few more characters. He was a little enthusiastic at first, but soon gave up. The flat, dark chess pieces became his building blocks, and he stacked them up one by one to see who had the highest number. I took out one piece and flew it across to see who could shoot down the top piece without disturbing the rest. In a flash of his mind, he arranged the chess pieces sideways and then pushed them down in an attempt to create a "domino effect." Later, we each took a piece and rolled it toward the other side, deliberately causing the two pieces to collide to see which one had the face up and win. Later, I pinched both sides of the circumference of the chess piece and turned it hard. The chess piece actually started to fly like a real top, fast and steady. What Kaikai then thought of was to "bomb" the chess pieces, disrupting the chess pieces that were dancing happily. So I spin as hard as I can, and he blasts enthusiastically, to see whose hands are faster. For the first time, I learned that there are N ways to play chess. Inspired by Cognitive Theory, contemporary early childhood education scholars recommend providing as many things as possible for children to explore. Things for children to play with should include three major categories: One category is open-ended ones, such as water, sand, art materials or construction materials, etc. There is no fixed way to play with these items, allowing children to play with them, which is the best way to cultivate children's imagination and creativity. One type is items that need to be used according to guidance (guided ones), such as cooking according to recipes, doing experiments, classifying, etc. This type of gameplay cultivates children's ability to follow instructions and exercises logical thinking. One type is self-correcting toys, such as puzzles, matching games, certain Montessori teaching aids, etc. When playing with such toys, children do not need to have adults around. Children will know whether they are doing it right or not, which makes it easier for them to learn at their own pace and enjoy the sense of accomplishment brought by every small step they get right. There should be a balanced ratio between the three types of toys to facilitate the healthy development of children's intelligence. In the eyes of us adults, chess undoubtedly belongs to the type of toys that require guidance in use, but in Kaikai's hands, it becomes an open toy with unlimited possibilities.