Preparation materials: First, you need to prepare a square piece of paper, scissors, pins and sticks. Choosing thicker paper can make windmills more durable.

2. origami: fold the square paper diagonally in half, and then fold it again to divide the paper into four equal triangles.

3. Paper-cutting: Starting from the apex of each triangle, cut about two-thirds of the length to the center, and be careful not to cut it completely. In this way, the eight blades of the windmill are formed. Be careful when using scissors, and don't let children do this step without the supervision of adults.

4. unfold the paper: unfold the paper carefully, and you will see that eight leaves have been evenly distributed in the four corners of the square.

5. Fix the windmill: pass the pin through the center of the paper to ensure that all blades can rotate freely. Then, fix the other end of the pin on the rod. When fixing the windmill, make sure that the pin passes through the center of the paper and is firmly fixed to prevent the windmill from falling off when it rotates. The length of the stick can be adjusted according to your needs.

6. Finish the windmill: Now, your windmill has been finished. You can blow it gently or put it in the wind to watch the blades of the windmill turn.

Methods to improve hands-on ability:

1. Make more handicrafts: by making handicrafts, such as models, greeting cards, jewelry, etc., exercise your hands-on ability. In this process, patience, care and creativity are needed, which are all important factors to improve hands-on ability.

2. Learn to knit and sew: Learning to knit and sew can exercise the hand's coordination and fine motor skills. Through constant practice, you will find yourself more and more skilled, and you can even make some complicated items.

3. Try cooking: Cooking is a very practical skill. Making food by yourself can not only enjoy the fun brought by food, but also exercise the ability of hand-eye coordination, spatial perception and innovative thinking.

4. Take handicraft courses: you can learn some professional skills and techniques, such as painting, sculpture, pottery and so on. These courses can help you improve your practical ability and artistic accomplishment.

5. Using virtual reality technology: It is also a good choice to use virtual reality technology for simulation practice. Through simulation exercises, hand-eye coordination and reaction ability can be exercised.