The baby's age is 1-2 years old. Children are in an active period. The physiological feature of this period is that their physical growth rate is slower than that of newborns, but their language development is particularly rapid. Although they can walk, run and jump, their movements are unstable. They like to touch around and enjoy all kinds of operational and exploratory activities. They are curious and destructive, but they have no sense of safety and self-protection. Combined with the above characteristics, the toys that parents can choose should be colorful, curious, changeable and lively, which can further exercise children's sensory ability and sports ability and enrich their minds. Such as toy balls, assembled toys, painting devices, toy cars, building blocks, jigsaw puzzles, etc. Childhood is 3-4 years old. With the growth of the body, children in this period began to become flexible and complete in language expression. Their brains also begin to have concrete thinking, express their thoughts and feelings in words, and are full of curiosity about things of interest. It is easy to imitate, so we can prepare outdoor sports toys for children, know the antonyms of up, down, left and right, role-playing toys, inspire them to enter the role, small animal toys, traffic toys and wooden and cloth toys, so that children can learn to say the names and appearance characteristics of toy objects. See, listen and speak more with toys. Play some The Imitation Game and role games with toys to develop children's language ability and cognitive ability. The course designed by Kabbah Science and Technology Activity Center for children in this period is to cultivate children's abilities of observing the world, hand-eye coordination, language expression and spatial orientation through role-playing and building objects and scenes, so as to enhance their creative potential.

Preschool 5-6 years old is preschool. Preschool children are in a self-centered period, pay more attention to their own abilities, like to ask "why" and start exploring everything around them. They also have a preliminary understanding of gender differences, are good at imitating, have a lot of activities, start learning activities, and establish preliminary concepts in various specific operational activities. This is the period when children can complete a work independently. This is to choose toys that can exercise children's big muscles, stimulate imagination, cultivate sympathy, satisfy their imitation ability and language expression ability, and stimulate their performance. Some structural toys, such as Lego bricks, thick plates with different shapes, plywood, plasticine, plasticine and some waste materials, let children play some structural games, and use these materials to build houses, build bridges, take trains and make animal models. And play creative games to stimulate children's enthusiasm for scientific exploration and develop their creativity and imagination. The course designed by Kabbah Science and Technology Activity Center for children during this period focuses on letting children explore the principles of science. For example, to understand the relationship between the structure and stability of objects and the functions of tools such as levers, gears and pulleys, children need to give full play to their creativity and practical ability in the process of completing tasks, and solve the same problems in different ways through design and construction, thus improving their ability to analyze and solve problems. School age is 6- 12 years old, also called childhood. Childhood children have been able to express their feelings and thoughts accurately, and have independent logical thinking ability and self-learning ability. During this period, children's psychology gradually shifted from self-centeredness to concern for others, from individual self-play to collective play, and they had a sense of group and knew how to cooperate with others. Can use simple mechanical principles such as levers and gears to build more complex devices, and likes to disassemble some daily necessities. Imagination and reasoning ability develop rapidly, and personality differences are obvious. These are all kinds of sports toys suitable for group sports and muscle training, more complicated mechanical assembled toys and toys driven by energy sources such as electric energy and wind energy. The courses designed by Kabbah Science and Technology Activity Center for children during this period mainly focus on the scientific knowledge related to motivation, so that children can understand the concepts of speed and rhythm, as well as the skills of collecting, storing, transforming and making renewable resources. By repeatedly perfecting their works, they can deepen their understanding of relevant scientific principles and further enhance their ability to solve problems.