1. First, prepare yellow and orange square colored paper, and cut the colored paper of each part of the shark's body with scissors, as shown in the figure below.

2. Then fold the two square colored papers in half, as shown in the figure below.

3. Continue to cross paste two square colored papers, as shown in the figure below.

4. Then use the pointed colored paper with scissors as the shark's teeth to highlight the characteristics of the shark's mouth opening, as shown in the figure below.

5. Then paste a small circle on the higher part of the shark's throw, and then draw black eyes as the shark's eyes, as shown below.

6. Then use the crescent-shaped colored paper cut out by scissors as the shark's tail and stick it on the shark's body, as shown in the figure below.

7. Then use scissors to treat the knife-shaped colored paper as shark scales, as shown in the figure below.

8. Finally, cut and paste the shark's scales on the lower part of the shark's stomach. Here the shark origami is done with his mouth open, as shown in the figure below.

Extended information: Sharks belong to the vertebrate phylum Chondroclass, Claudibranchia, marine, and a few species enter fresh water, which is a group of medium and large marine fish with fast swimming speed.