The Research Of The Cause And Strategy Of Chemistry Learning Interest Drops In Junior High School Students

Chemistry is a science based on experiment,based on the characteristics of students interested in chemistry learning very easily.Especially for students in grade three,new discipline,new knowledge,magical chemistry experiment,may not attract their attention,arouse their strong desire for knowledge.As a result,we found that the junior high school students in the beginner's chemical,showing high interest in learning.But junior high school chemistry students imagination in so easy,and even,in a wide range of concepts,a lot of to keep the content of the back,have been hit students interest in learning chemistry at first.Inevitably,with the increase of utility and the difficulty of teaching content,students began to show interest in chemistry learning.Which bring a chain reaction of interest is students' learning enthusiasm decline,decline in performance,self-confidence,learning chemistry from a pleasure into a burden.Of interest,as a junior high school chemistry learning process a common phenomenon,the serious influence the junior middle school chemistry teaching activity,what is more,affect the relationship between teachers and students is not harmonious,so as to bring more trouble to teaching.in 2013-2014 academic year,to consult the related literature in this field,and found that the junior high school students' interest in learning chemistry,has a great influence on learning effect,at the same time,loss of interest,often accompanied by differentiation of the student's grade.To be cognizant of the chemistry learning interest in time,the author in 2014-2015 school year last semester,through the questionnaire research,interviews,found that students interested in down there is a certain amount of time nodes.At the same time,the nodes distribution area,also is interested in the low level,is the third unit,four,five.The author through the questionnaire survey,found the factors that affect students'interest,discovery teaching difficulty of the three units contain,students are difficult to breakthrough,knowledge is not good,get the positive feedback to reduce,thereby learning interest.These difficulties include difficulty understanding of microscopic particles,the element compound knowledge understanding,computational difficulties.After using the learning case teaching method in teaching practice,found its keep on students' learning interest and the difficulty of breakthrough has a great help.So learning case teaching method is proposed to solve the problem of chemistry in junior high school students learning interest.