1, origami airplane: Fold the paper in half to form the basic airplane shape, and then turn the wings up.

2. Folding paper box: Fold the square paper into triangles to form the bottom and top of the box, and cut off the excess paper with scissors.

3. origami animals: Take the origami cat as an example, fold the square paper into a triangle to form the shape of a cat, with its ears and tail folded upward.