How to use origami activities in geometry teaching in primary schools

The way to make a piece of cardboard into a movable geometric figure-parallelogram is: cut out two pieces of paper with the same length, the longer one; Cut two shorter pieces of paper of the same length; Cut the two ends of four pieces of paper into circular arcs, and drill a hole at each end of each piece of paper. Match the paper strips with the same length and connect four paper strips into a quadrilateral. In this way, you can make a parallelogram that moves at will.

Origami is an artistic activity of folding paper into various shapes. Origami is not limited to paper. Origami lovers all over the world use various materials, such as tin foil paper, napkins, acetic acid tablets and so on. , while observing the folding specifications.

Origami originated in China in 1 or 2nd century, and was introduced to Japan in 6th century? And then spread to all parts of the world through Japan. It is also said that origami originated in Japan and Spain.

The combination of origami and natural science has not only become an auxiliary teaching tool in architectural schools, but also developed origami geometry as a branch of modern geometry. Origami is not only a toy, but also a thinking activity. Is it a way to symbolize peace and commemoration, or a way of entertainment? [5]。

There are three theories about the origin of origami: China origin, Japanese origin and Spanish origin. Although these statements are just speculation, as early as the Western Han Dynasty, paper made of hemp and a small amount of ramie fiber appeared in China. It was not until 6 10 that Tan Zheng, a Korean monk, presented papermaking to Shoto Kutaishi, the then Regent. So many people think that origami originated in China more than 2000 years ago, and then spread to the whole world through Japan.