Goal:

1. Know cubes and cuboids and tell their basic characteristics.

By comparing the difference between a cube and a plane figure, you can count the hidden cubes.

How much is hidden is a scientific activity of the big class, which has three links. The first link lets children distinguish the relationship between plane and three-dimensional. The second part, let children know about cuboids and cubes, and tell their basic characteristics. In the third part, the hidden cube can be calculated by comparing the difference between the cube and the plane figure.

During the whole activity, my language may be verbose and not concise, especially when I make a request, I will be unclear. Therefore, teachers should carefully consider whether their language is concise before carrying out scientific activities in the future. Is the question raised valid? Can you stimulate children's interest in learning? Can the child understand? I believe that considering these aspects, the activity will be more compact, thus improving the effect of the activity.

The response to children should be a kind of teacher-student language interaction that every teacher will have when carrying out activities. How will the child answer the teacher's questions? The teacher's response can't just be "yes, yes" or repeat children's language. These responses are invalid. Teachers' answers should be improved or refined for children, and different forms of responses should be tried. Teachers should think carefully about every problem when designing. What will the child say? Make some presuppositions (what language does the teacher respond to the child).

The whole activity went smoothly, and we still need to work hard on the interaction with children.