Abstract: Taking photosynthesis teaching for example, there are some differences in teaching content and requirements during the period of junior middle school, high school and university, but the teaching is all supposed to help students understand the connotation of the concept of photosynthesis as well as recognize the importance of photosynthesis, which enables students to further develop the life concept of structure and function, the life concept of material and energy and the life concept of evolution and fitting in. While taking part in the inquiring activities, students are supposed to form the scientific way of thinking, to cultivate scientific attitude and responsibility at the same time. The real, specific and valuable problem-solving situation is the carrier to form the driving task, and to guide students to solve the task and construct new knowledge, new understanding and new application. Performing deep learning based on real problem situations is an important way to cultivate students′ core literacy. According to the cognitive characteristics of students of different ages, teachers of each learning stage should help students gradually explore the nature and law of life, improve the concept of life, and then form a correct view of nature and world.

Key words: photosynthesis, core literacy, deep learning