| A new curriculum reform a top priority in the reform of teaching practice, and chemistry teaching practice was the creation of the chemistry teaching situation. Teachers should analyze the teaching material. Follow the rules of the students’ cognitive development, creating the right chemistry teaching situation, the ability in chemistry teaching through mobilizing students’ learning enthusiasm to achieve good teaching effect. Creation of teaching situation to help the student to obtain the real emotional experience, to cultivate the students’ thinking at the same time, let the students actively participate in learning activities. In addition, the idea of constructivism is the new curriculum reform, new curriculum idea which emphasizes itself according to the students design their learning environment, and focuses on creating teaching situation to mobilize students’ learning initiative. Meaning construction need as support and situational teaching is a teaching situation, to carry out teaching activities by creating a suitable situation, situation teaching and to follow the physical and psychological development of junior middle school students. Therefore, chemistry teaching is the key to how teacher science chemistry teaching situation properly.Investigation and analysis of three junior high school students, summarizes the problems existing in the creation of the current chemistry classroom teaching situation: students failed to develop good study habits, learning activity participation enthusiasm is not high, the teachers’ ideas change slowly, did not reflect the value of teaching situation, and so on. In situational teaching principles and situation teaching procedures, aiming at these problems to improve the creation of the junior high school chemistry classroom teaching situation put forward the corresponding countermeasure, to optimize the structure of classroom chemistry teachers, to mobilize students’ learning enthusiasm, improve the classroom efficiency provides the theoretical guidance. |