PBL Teaching Mode Based On Mind Map In High School Chemistry Teaching Practice Research

PBL(Problem-based Learning)teaching mode is a problem-based teaching mode aimed at improving problem-solving ability.The basic education reform puts forward the requirements of"changing the curriculum's tendency to pay too much attention to knowledge transfer,the lack of integration between knowledge,and strengthen the connection between curriculum content and student life and social development",which puts forward higher requirements for students' problem-solving ability.,Mind maps are also being developed to assist teaching,which can help students better master chemistry knowledge and develop their problems discovery and solving skills.Based on this,this research attempts to integrate the mind map and PBL teaching mode for research,and introduces teaching cases of high school chemistry of practical research.The main contents of this research are as follows:Firstly,the literature research method is used to sort out the research status of PBL and mind mapping at home and abroad.Through sorting and summarizing the literature,it is found that there are very few literatures that combine mind mapping and PBL in chemistry for research.The PBL teaching mode of mind map is applied to the practical research of high school chemistry.Secondly,the core concepts such as PBL and mind map are combined with constructivist learning theory,Bruner's discovery learning theory,and learning scaffolding theory.Once again,a survey was carried out on the interest,attitude,and participation of students in a middle school in Yan'an City,Shan'xi Province in terms of PBL and mind mapping,in order to understand the needs of students.The survey results show that students are more interested in the PBL teaching model based on mind mapping.Therefore,it combines teaching principles,teaching objectives,teaching content,teaching procedures,teaching evaluations,etc.to construct a PBL teaching model based on mind maps,and chooses the compulsory course of high school chemistry people's education version.The nature of sulfur dioxide and the concentration of sulfur dioxide in seawater Element-chlorine,metal materials with a wide range of uses are used for teaching practice.Five students with different levels of practical research and three teachers of different teaching ages are used as the objects.The experimental class is compared with the control method through questionnaire surveys and interviews.Class students analyzed the practical effects of this research in high school chemistry teaching on the basis of performance comparison,questionnaire surveys,student interviews,and teacher interviews,and finally reached conclusions based on the above analysis and practice,and did not reflect insufficiently.The results of the study showed that after the teaching practice,the experimental class and the control class had 59.23 and 51.02 academic scores respectively,and independent sample tests showed that there was a significant difference in their scores.Secondly,there were significant differences in the scores of 5 students and 3 old,middle-aged and young students in the experimental class.Teachers of different teaching ages conducted interviews and questionnaire surveys on the PBL teaching model based on mind maps,and the results showed that the PBL teaching model based on mind maps conformed to the new curriculum reform advocated by the tendency to focus on the teaching of knowledge and lack of knowledge.The integration and the requirement to strengthen the connection between curriculum content and student life and social development play a certain role in improving students' problem-solving ability,the ability to systematically integrate knowledge,and the improvement in students' academic performance.A teaching model worthy of research and promotion.