What are the classification and design ideas of popular science education activities in technology production? Apply the learned theory to design the technical system.

The popular science education activities of science and technology production are divided into two categories: one is preschool children's cognition of science and technology products and common tools, which are divided into two types according to different goals and requirements: feeling operation and design production. The other is small-scale scientific and technological production activities aimed at children, which are divided into imitation production and design-production

Teaching material analysis:

"Homemade stamps" mainly understand the shape, characteristics and uses of stamps and can make stamps. I focus on telling the characteristics of stamps in clear language and know how to use stamps. The difficulty lies in designing a commemorative stamp. In order to break through the focus of teaching, I used the development goal of the new scientific field as the guide, and used multimedia courseware to vividly show children five characteristics of stamps: face value, issuing country, issuing date, edge perforation and pattern, so that children can quickly grasp the key points. In order to break through the difficulties, I skillfully set up a link to understand the production process through discussion, and designed and produced a stamp I like.

Design intent:

One day I received a letter, and the children scrambled to read it. I casually pointed to the stamp and asked, what is this? Only one child said stamps, so I want to let children know the characteristics and uses of stamps, and stimulate their creative thinking and experience the fun of using their hands and brains by designing and making stamps.