A Study On The Obstacles And Overcoming Strategies Of The Plane Geometry Study Of The Students In Grade Seven

In junior high school mathematics,plane geometry has always been a key point in teaching.Junior high school students will inevitably encounter some difficulties and obstacles in the way of plane geometry learning.Although many scholars have got many conclusions in studying the reasons of learning difficulties and problem solving errors in plane geometry,the results of the analysis of difficulties and obstacles faced by the students in Grade Seven in learning plane geometry are relatively few.Therefore,how to lead students to learn this knowledge more efficiently and teachers to teach in more targeted ways has become a problem we need to solve.In this paper,by consulting relevant literature and combining with my own teaching practice,starting from the difficulties of junior high school students in learning plane geometry,through questionnaire survey,test results analysis,face-to-face interviews,classroom teaching observation and other forms of surveys between junior high school students and part of the teachers,I respectively do a survey about the students' learning habits of plane geometry,computing ability,logical thinking,reasoning proof,the mastery of concept theorem,and the processing of teachers' teaching.Through the test,observation and interview,we find that the first grade students are the most common six errors in solving plane geometry problems,which are: the careless examination,the wrong drawing,the wrong operation,incomplete classification discussion,confusion of subjective assumptions and logical reasoning,and the wrong writing,narration and unclear expression.There are six aspects of plane geometry learning disabilities of junior high school students: 1.Cognitive impairment: lack of memory and confusion of concepts;2.Drawing obstacles: poor hands-on ability and drawing ability;3.Transformation obstacles: poor understanding of geometric language and reasoning ability;4.Method obstacle: improper learning methods and improper attitude;5.Operation obstacle: poor operation ability and serious score loss;6.Affective disorder: lack of learning motivation and cold emotion anxiety.The causes of students' geometry learning disabilities may be teachers' lack of personal charm,professional knowledge,teachers' laziness,or students' cognitive level is not high,methods and skills are not flexible,attention is not strong,and the influence of living and learning environment.Through the analysis of the plane geometry obstacles of junior high school students,we find out the corresponding strategies: One is to improve the interest in geometry learning;Second,pay attention to the teaching of geometric concepts;Third,strengthen the ability of geometric expression;The fourth is to cultivate students' ability of geometric drawing;The fifth is to cultivate the ability of calculation and reading;Sixth,use science and technology to help students understand geometry.According to the above countermeasures,a stratified teaching practice is carried out for a class of junior high school students in Grade Seven.It improves the students' interest in geometry learning,the grasp of concepts and the expression of geometry from the aspects of changing teachers' teaching methods,the use of teaching multimedia,stratified questioning and homework evaluation.After investigating the changes of students' learning after students and teachers use the corresponding countermeasures,it is found that some strategies have obvious effects,such as teachers strengthen the preparation before class and feedback after class,students pay attention to geometry learning obviously;Teachers change teaching methods properly in class,and students' interest and attention are improved;Some students have developed some good habits,and their understanding of geometry has also greatly improved.At the same time,it is found that some strategies have no obvious effect in the implementation process,such as the students' achievement sense is not ideal,because most students pay close attention to their own learning results,but geometry learning results are not achieved overnight.Students often think they have worked hard but not achieved well,which affects the students' achievement.The teaching practice results in this paper to some extent provide help to our teachers and students' learning.