1. Step 1: Please take out the materials we need: scissors, environmental protection bags and other items, and then spread out the prepared environmental protection bags and disassemble them from below.

2. Step 2: Put the small vest flat on the environmental protection bag, draw the outline of the vest on the environmental protection bag along the outer edge of the vest with a pen, then cut the drawn outline with scissors, and divide the cut environmental protection bag into two parts.

3. Step 3, fold the neckline at the front of the environmental protection bag into the neckline of the suit. Next, find a piece of paper on the bag, fold it into a bow and fix it to make the front of the vest.

4. Finally, nail the two parts of the environmental protection bag together with staples, and then turn the outside of the environmental protection bag out after nailing, thus making an environmental protection vest.

The advantages of doing manual work:

1, exercise hands-on ability, try ability and do more work, so that students' creative personality can be maximized. Compared with other activities, handcraft is more open-minded and fully expresses the existing level. Creating imaginary things by hand can develop students' observation, memory, imagination and creativity in the process from virtual to real, which is conducive to the development of the brain.

2. In the process of hand-making, it is often necessary to cooperate in many aspects, especially with people. Cooperation with people and hand-making will help children better understand how to communicate with others, put themselves in their shoes and promote the development of communication skills.

3. It can enrich children's lives. Now, manual work is gradually replaced by machines. For children, the most important thing is not to sit and enjoy, but to understand the history of creation and understand the meaning of creation. Handmade works can not only make babies learn things, but also enrich their lives and make their childhood full of joy.