1. First, take out a rectangular piece of paper and fold it in half along the middle. When finished, the two sides should be folded in half, leaving a little space in the middle, folded in half to the left, and folded in two small triangles in the middle.
2. Open the triangle and the top half of the paper. The black underlined part will be folded inward along the crease, and the redundant triangle will be folded inward.
3. Fold down the upper paper, take out the lower paper on the right, cover the upper part and flatten it.
Let's deal with two problems. Open the paper from the middle and fold two small triangles respectively. Open the triangle on the left and fold it in along the crease. Insert the small triangle on the right into the gap on the left. So is the rest. It looks like this after folding.
5. Fold the remaining piece of paper in the same way. After folding, combine the two parts and stick the middle part, and a simple boomerang will be folded.
Boomerang
Boomerang is also called homing device, flying machine, etc. It can fly out and then fly back. Its shapes are V-shaped, banana-shaped, trilobal, cross-shaped, multi-leaf and so on. V-shaped and banana-shaped boomerang sticks were once the traditional hunting tools of Australian aborigines. After a skilled hunter sends a boomerang to his prey, if it doesn't hit the target, the boomerang will return to the sender.