Mathematics is a profound knowledge, for example, it can be used in Gai Lou; Mathematics is also a kind of daily life ability, and it is also necessary to go out to buy food. For this ability, American parenting expert Jill? Adams pointed out that at the age of 3-5, children can be cultivated by playing games. ? Shape recognition: cut colored drawing paper into different shapes, such as square, rectangle, pentagon, triangle, etc. Let the children put together the graphics into a new big plane graphic, or put these papers together like building blocks to form a three-dimensional shape and give it a new name. Benefits: Cultivate children's good spatial cognitive ability and creativity. ? Know the size: there is no need to teach a child to know a ruler to establish the concept of object size. Give the child a short rope, let him measure the doll's room with the rope, then measure the height of the house with the same rope, and then measure the pets at home and compare their heights. Benefits: Cultivate children's comparative ability and spatial cognitive ability. ? Arrange the order: For example, when a child plays a doll's dinner game, let him arrange what everyone should do, for example, let you clean up the food and clean up the plastic plates and other tableware yourself. Benefits: Cultivate children's ability to plan and arrange order. ? Classification: Most children like to line up cards, cars or pillows. Ask your child why the red pillow is placed next to the green pillow, and whether it is classified by size or color. Then, let him try again according to other classification methods. Benefits: Learning to arrange and classify is the basic skill of learning mathematics and reading, and it can also cultivate children's creativity.