1, to guide children to identify graphics (triangle, rectangle, square, circle, semicircle, etc. ).

2. Let children initially perceive the transformation relationship between graphics and find a solution to the problem.

3. Cultivate children's thinking flexibility, develop children's practical ability, and stimulate children's desire to learn mathematics. According to the goal, I set the focus of the activity as follows: review and consolidate the understanding of rectangle, square, triangle, circle and semicircle;

4. The difficulty is: initially perceive the combination and transformation relationship of several graphics.

Teaching instructions:

1, scenario creation method: In the activity lead-in part, children should not only discover problems, but also lead to a series of questions and explorations behind, and set suspense in ways that children are interested in, so I designed the plot of building a beautiful little house for birds with graphics, and inspired children to think through scenario performance.

2. Demonstration method: The teacher demonstrates the teaching AIDS to the children by explaining the dialogue to help them gain a certain understanding. The demonstration of this activity is to learn to distinguish similarities and differences on the basis of using geometric figures.

3. Observation: Observation can enrich children's perceptual experience and cultivate children's interest and curiosity about things around them.

4. Game method: "Education through fun" is one of the principles embodied in the Regulations, which downplays the model, puts educational content into interesting games, fully mobilizes children's learning enthusiasm and allows them to "learn while playing".