Research On The Application Of PBL Strategy In High School Biology Concept Teaching

According to the requirements of the General Senior High School Biology Curriculum Standard(2017 Edition),attention is paid to the study of important concepts.However,through previous internship observations,there are still many problems in the teaching of important concepts in high school biology.In order to solve this problem,in high school biology Introduce Problem-Based Learning(PBL)teaching strategy into the concept teaching of learning.It is hoped that through teaching strategies and teaching case design,it will effectively promote the teaching of important concepts in biology,and provide reference and experience for the exploration and reform of biology teaching in high school.This research first collects and organizes relevant data,studies the current situation of PBL strategy teaching at home and abroad,and summarizes the theory of PBL strategy.Then it analyzes the teaching cases of the predecessors using the PBL strategy,and found the problems: 1.This strategy is less used locally.2.This strategy is mostly used in new lectures and less applied in other lesson types.3.In the course of teaching,teachers have the phenomenon of asking for questions,and they lack the necessary supplementary explanations.4.The difficulty of the questions set by teachers needs to be deepened,and the interests of students need to be further explored.Aiming at the problems found,the author designed the teaching cases of new lectures,review lessons,and exercise lessons by taking the important concepts of high school biology textbook compulsory 1 as examples,and proposed PBL strategies for different types of lessons to form different teaching It is designed and applied to the actual teaching to test,and then the actual teaching effect is evaluated by using the results test,classroom observation method and interview method.Practice has shown that applying PBL strategies to the teaching of high school biology concepts can have a certain positive impact on students 'effective grasp of concepts,and to a certain extent it can help to cultivate students' comprehensive ability,help them improve their motivation for learning,and increase their interest in learning To enable students to learn,PBL strategies can be applied to the teaching of biology concepts in high school.Finally,summarize and reflect.Due to the lack of personal ability and the limitations ofthe research ideas,the research in this study is not thorough enough.The number of teaching case designs is relatively limited.The innovation and applicability of the research need to be further studied by the author.Research and investigation.