The Application Of KWL Teaching Model In Senior Middle School Chemistry Experiment Teaching

With the development of education to the demand for talents,curriculum standards have a new requirement for teaching,it means that the traditional teaching model will change.The "K"in the "KWL" teaching model refers to "What I Know","W" means "What I want to know","L" means "What I did Learn".The model requires students to present what they want to master on the basis of reviewing old knowledge,and then obtain new knowledge through discussion and exchange in class,and to summarize their knowledge in the form of "KWL"forms.This study uses "KWL" teaching mode for high school chemistry experiment teaching,defines the concept of "KWL" teaching mode and high school chemistry experiment teaching,and makes theoretical research,then analyzes the current situation of experimental teaching and introduces the teaching process and principles of the model for experimental teaching,then designs teaching activities and carries on practical research.After the evaluation of the effect feedback,the corresponding solution strategy is put forward by analyzing the problems encountered in the practice process,and the conclusion of the study is reached by the summary.The purpose of this study is to explore new experimental teaching methods and develop students’abilities,while providing reference for experimental teaching.The details of this article are as follows:First of all,the study overview.Analysis of the requirements of the new curriculum standards for experimental teaching and the current situation of high school chemistry experiment teaching,explaintheing the advantages of "KWL" teaching model,and then clarify the reasons for selecting topics,and introduce the concept of "KWL" teaching model and high school chemistry experiment teaching,summarize the chemistry experimental teaching,"KWL"teaching model at home and abroad,then determine the purpose and significance of the study,as well as the content and method of the study.Secondly,the theoretical basis is expounded.The five elements of“KWL”teaching model are expounded,namely,theoretical basis,teaching objectives,implementation procedures,realization conditions and evaluation system.Next,conduct practical research.Design teachers and students questionnaire to understand the experimental attitude of the teachers of the internship school,experimental equipment,time arrangement,students’ experimental skills and attitude towards the experiment,etc.,through the analysis of these findings,to support the teaching practice,and based on the teaching process and principles of the "KWL" teaching model for experimental teaching,design the teaching activities of "sodium carbonate and sodium bicarbonate" and "iron salt and iron salt",then carry out teaching practice.Then analyze the results of the practice.Analysis of teaching effect from teachers’ and students’ feedback,learning about teaching effect through communication with teachers.According to the "KWL" form,test papers,and questionnaires to understand the teaching effect,and analyze the problems encountered in the teaching through the exploration of the causes of the problems,propose corresponding solutions.Finally,through the study,it is feasible to apply the "KWL" teaching model to high school chemistry experiment teaching.It not only helps students to change their learning methods,but also provides new ideas for experimental teaching.At the same time,it has a certain promotion effect on students’ operation ability and collaboration ability.Although research is not systematic enough due to personal level and time,etc.It is hoped that the research can provide some reference value for teaching.