2. First fold the four corners of the colored paper in half, and then cut it along the folding line with scissors, leaving about one centimeter in the middle, as shown in the figure below.
3. After we cut it, cut a few short pieces of double-sided tape and stick it in the position shown below.
4. Fold an angle inward first, don't squash it, but stick it together, as shown below.
5, and then the other corner is also done in the above way, as shown in the figure below.
6. Stick all the corners to the center at one time according to the above operation, and the windmill will be finished.
7. In order to make the windmill rotate, we need to find a thumbtack to pass between the windmill and the straw.
8. After putting the thumbtack in, the windmill we made can turn with the wind.