An elementary school student's innovative invention reading answers

It's not only troublesome, but the embroidery is also slow

Although. But

Wang Fan students of this small invention although it seems simple, easy to make, but how many years is no one to think

2, Wang Fan in order to simplify the steps of embroidery, reduce the number of times the opposite side, to improve the speed of embroidery, he tried to remove half of the nose of each of the two embroidery needles, and then welded the two halves of the nose of the needle needle embroidery needles together, made a shuttle-like two pointed, hole in the middle of the embroidery needle, and the needle is not a needle. and a hole in the center of the embroidery needle. Embroidery with this double-edged embroidery needle, no need to turn the material over and over, greatly improving the speed of embroidery.

3, Wang Fan can pay attention to the things around, careful observation, good brain, can break the routine, invention, which is worth learning. I usually can't think like him so much more than one step, more things to be connected, which needs to be improved