High School Chemistry Teaching Research On Flipping Classroom Fusion "Four-Line" Teaching Mode

The new high school chemistry curriculum standards require the comprehensive strengthening of the cultivation of students' core literacy,and the importance of using chemical history materials to cultivate students' core literacy is widely concerned.Based on the integration of the existing history of science into the teaching model of other disciplines,the previous research team has applied a number of teaching practices to test the actual history of the integration of chemical history into the middle school chemistry curriculum.The four-line teaching mode of "history line","exploration line","knowledge line" and "application line" of teaching practice,this model has certain knowledge for students to understand the evolution process of knowledge,master the inquiry skills,and solve practical problems.The value of the application,but more time required.This study uses the flipping classroom to solve the problem of the"four-line" teaching mode taking up the class time.The research uses the literature analysis method and the experimental research method to construct the teaching model of the "four-line" teaching mode in the flip classroom,and the "history line" and "exploration line" in the original "four-line" teaching model.The repeating chemist's historical inquiry experiment is arranged before the class.Students are required to study the relevant courseware of relevant chemical history in the "history line" before the class to understand the evolution of the learned knowledge and complete the pre-class study task list.To supervise and test the students' learning effect and independent design and innovation experimental plan,arrange the practical operation links of the original design experiment and the teaching link of the "knowledge line" in the original "Exploration Line" to carry out the original "application line" teaching.The links are arranged after class.According to the teaching model constructed,three teachingcases of "enrichment of elements in the seawater – chlorine","ammonia"and "periodic table of elements" were produced.In order to test the actual effect,the students of Wuhai No.1 Middle School High School(469)and(466)were selected as experimental subjects,and the "Enrichment of Elemental Chlorine in Seawater" was used as the experimental content.The experimental results show that after the experiment,the average score of the students in the experimental class is significantly higher than that of the students in the control class,and the scores of the experimental class are closer to the average value;the results of the independent sample t test show that the Sig(not assumed the equal variance)corresponds to the Sig(double The side value is 0.047<0.05.There is a significant difference in the chemical scores between the experimental class and the control class.The experimental class has a gap in the ability to explore innovation and the level of knowledge associated with the actual production and life.The"four-line" teaching mode after the reversal can solve the shortcomings of the original teaching mode taking up the length of the class,and under the original teaching effect,it improves the students' ability to explore and innovate in chemical science and link the learned knowledge with the actual production and life.