1, spelling of jigsaw puzzle tortoise:

2, jigsaw puzzle puppy spelling 1:

3, jigsaw puzzle puppy spelling 2:

4, jigsaw puzzle puppy spelling three:

Extended data:

First, the cognitive goal of Tangram:

Know the basic structure of Tangram, and express your thinking results with appropriate figures and white language.

Second, the jigsaw puzzle ability goal:

(1) Through the production activities of jigsaw puzzle, we have further enriched our understanding of parallel, vertical and angular related contents.

(2) In the process of communicating with others, I can express my thinking process reasonably and clearly.

(3) Cultivate students' practical ability, accumulate experience in mathematical activities in the process of assembling various figures, and enhance students' innovative consciousness.