1. Cardboard puzzle: Cut waste paper boards into puzzle pieces with different shapes, so that primary school students can exercise their hand-eye coordination and logical thinking ability through puzzles.
2. Paper bag dolls: Using paper bags, colored paper and scissors, let primary school students make their own dolls, which can let them exert their imagination and creativity.
3. Wool knitting: Teach primary school students to learn basic knitting skills and make simple wool small objects, such as key chains and mobile phone accessories.
4. Stone painting: Collect stones with different shapes and colors, and let primary school students paint with colored pigments or colored pens to make unique works of art..
5. Paper plate windmill: Using paper plates and toothpicks to make windmills can let primary school students understand the principle of converting wind energy into mechanical energy.
6. Paper Cup Telephone: With two paper cups and a thread, primary school students can make a simple telephone to let them know the principle of sound propagation.
7. Cardboard maze: Make a maze with waste paper boards, let primary school students design maze paths, and cultivate their spatial imagination and problem-solving ability.
8. origami animals: teach primary school students to learn different origami skills and make various animal shapes, such as origami airplanes and origami boats.
9. Bottles and vases: Using waste bottles and colored paper to make vases for primary school students can help them learn to use waste and beautify the environment.
10. Cardboard bookcase: Teaching primary school students to learn simple woodworking skills and making their own bookshelves can cultivate their hands-on ability and finishing ability.