Microteaching is a systematic method to train normal students and in-service teachers in teaching skills by using modern educational technology. One of the founders of microteaching, American educator Dr. Dwayne T. Allen, thinks microteaching is "a simplified and controllable teaching environment, which enables people who are about to become or have become teachers to concentrate on certain teaching skills and teaching contents".

Micro-technology is also reflected in two aspects: observation object and observation time. Microtechnology is generally carried out in groups, with 5- 10 people in each group and observation time of 5- 15 minutes.

Group observation is more conducive to teachers' targeted, in-depth and specific discussion of a certain behavior; A shorter observation time can make the observation more targeted and highlight the key points.

Microteaching actually provides a practice environment, simplifies the daily complicated classroom teaching and enables practitioners to get a lot of feedback. Microteaching refers to trying small-scale classroom teaching for a few students in a short time (5-20 minutes). This teaching process can be filmed and analyzed after class.

Microgrid technology has the following two characteristics:

The first is to refine the observation situation. Microform technology decomposes a series of children's game behaviors, takes events as the center, and can truly reflect children's behaviors. Teachers observe children's behavior and language in regional activities and game activities, and interpret children's experience construction and learning development. Suitable for games that focus on analyzing groups, groups or individual children. The second is to narrow the scope of observation.