The purpose of 90-hour training in junior high school science is to understand and practice the consistency of teaching evaluation, which has brought profound changes to our teaching. The consistency of teaching evaluation based on core literacy has brought about the change of scientific concept in junior high school, which makes students think about the classroom not only on the experience level, but also on the principle level.

The purpose of 90-hour training in junior high school science is to make students deeply realize that in order to form scientific concepts and scientific thinking, project-based learning based on facts and scientific experiments must be carried out in junior high school, so that students can do, play, use, create and learn in new technology scenes and interdisciplinary subjects, and the boring words and knowledge in books can be seen, heard, touched and spoken.