Research On The Effectiveness And Application Of PBL Teaching Mode In Junior High School Science Experiment Teaching

Since the early 1980 s,the world has entered the era of knowledge economy,and the international competition has become increasingly fierce.In order to meet the country's demand for talent training,the school education dedicated to cultivating national talents can only make continuous reforms and innovations to allow the motherland to better stand in the trend of the world.Therefore,school education is also focusing on cultivating quality-oriented talents with innovative spirit,innovative ability and autonomous learning ability.In the past,the teacher centered teaching mode will be gradually weakened,and it will be the general trend to give the initiative of the classroom back to the students,so that the students can really experience the fun of "learning by doing".The PBL teaching model is based on problems and uses the form of group cooperative inquiry to solve practical problems.It not only internalizes book knowledge into students' own experience knowledge,but also improves students' ability to use knowledge flexibly,and further trains students high-level thinking,independent learning and problem-solving skills.This teaching mode conforms to the teaching concept of junior high school science experiment teaching,and can provide new ideas for the innovation of junior high school science experiment teaching methods.As a novel teaching mode,PBL teaching mode has been applied to various disciplines by some scholars after research,and the practical effect is quite good.However,the author found that there are relatively few researches in junior high school science after collating relevant information.Therefore,in order to improve the current junior high school students' experimental exploring ability and innovation ability in the science classroom,this research plans to sort out a PBL teaching model that is more suitable for junior high school science experiment teaching.This article mainly completed the following research content:First,through literature review,the concept,characteristics and related theoretical basis of PBL teaching mode are sorted out,and the current research status of PBL teaching at home and abroad is analyzed.Second,through interviews with front-line teachers,it is found that there are some problems in the current junior high school science experiment teaching in Hangzhou,Zhejiang Province,such as less experimental hours,low content innovation,and poor group cooperation effect.Therefore,combined with the characteristics of PBL teaching mode,the author chooses the concepts of "the image for plane mirror" and "germination conditions of seeds" to design and practice the teaching combined with classroom records.Third,through the questionnaire survey,it analyzes the learning effect of five dimensions: Students' interest in learning,the effect of situation creation,the effect of group cooperation,students' mastery of knowledge and teachers' guidance in the process of curriculum implementation.The survey found that under this model,students' enthusiasm for learning knowledge,experimental operation ability,cooperation ability between groups and innovative thinking have been significantly improved,and students' awareness of practical application of book knowledge has also been strengthened.The case study shows that PBL teaching mode is in line with the quality education advocated by the new curriculum reform.The application of PBL teaching mode in junior high school science experiment teaching class can better assist teachers' teaching work and help students learn knowledge better.