A Case Study Of "Student Knowledge" In PCK Of High School Elite Chemistry Teachers

Teachers of "students knowledge" is an important part of pedagogical content knowledge. Discipline teachers should not only have the discipline knowledge, but also have a certain "students knowledge".This study is on the theory of constructivism, meaningful learning theory and accumulation learning theory as the instruction. Through the analysis of middle school students’ thinking development level, the students’ cognitive style, the students’ knowledge, the students’ learning interest and motivation and so on various aspects, create the PCK "students knowledge" in the connotations of the cognitive level. On this basis, through the classroom teaching video analysis, interviews, questionnaire survey methods such as the three excellent high school chemistry teachers of "students knowledge" have carried on the deeper research.Teachers "students knowledge" in the cognitive level of PCK include teachers in teaching students to learn knowledge, students which is prone to errors or difficult to produce, and promote the understanding of students’ knowledge, etc. Research shows that excellent middle school chemistry teachers not only attaches importance to students’ cognitive construction, but also pay attention to the cognitive level of "students knowledge" and the students’ learning interest, learning motivation factors such as the combination of these factors, which in turn, promote the students’ cognitive understanding better.Research proposal:the teacher can focus on students’ homework and test condition, paying attention to students’ classroom performance and focusing on the teaching material and student exchanges and other avenues for "students knowledge".