Research On Causes Of Wrong Answers And Countermeasures In "Cell Division" Section For Grade 3 Students In Senior High School

Many senior school biology teachers have the same experience that students still can’t solve the problems that they have explained many times. Students feel very distressed, and the teachers also can’t figure out a better way. The “cell division”section of the people’s education edition includes three parts: mitosis, amitosis,meiosis and fertilization. This chapter is complex and abstract, and connected with many chapters. It is the important point in the university entrance exams, and also the part that students are most afraid of, as they are most likely to make mistakes in this chapter. How many types can the students’ mistakes in “cell division” be divided into?What are the causes of these mistakes? What measures can be taken to reduce the mistakes? These are the focus of the paper.This paper, based on education theory, is aimed at reorganizing the common mistakes that the students made in their study by going through the exam papers in Grade three in Huanggang including Huangzhou No.1 Senior High School in the past two years, correcting the students’ exercises and recording how the students answer the question in class.This paper made further analysis on the most typical mistakes in the “cell division” section. In this paper, the students’ mistakes are mainly classified into six categories: 1. cell cycle; 2. Fertilization; 3. chromosome; 4. nuclear DNA; 5.experiment; 6. the function of cells.According to the types of errors which students have in this chapter,the author designs another testing paper about the chapter of ”cell division” to test the grade 3 students of the senior high school again.Through analyzing these six types of mistakes, and with the help of an questionnaire on the causes of the mistakes can be summed up as eight types:1.Don’t analyze the problem carefully.2.Basic knowledge is not solid.3.don’t figure out the connections between concepts4.Don’t have a good learning habit5.Lack of understanding6.The set of the problem is unreason able7.Improper teaching methods8.Teaching resources is not sufficientAs for these eight causes, Sever teaching Strategies and suggestions are put forward: 1.to master the skill of analyzing the problems; 2. pay attention to return to teaching materials, and consolidate the basis knowledge; 3.clarify the concept relationship, focus on the cultivation of divergent thinking; 4. correct attitude towards learning and develop good habits. 5.optimize the proposition procedures, improve the quality of proposition; 6.establish responsibility consciousness, enhance the teaching ability;7.increase investment in education and enrich teaching resources.This research can function as guidance and reference to the breakthrough of teaching difficult points in Grade Three,the creation of new teaching method,and the improvement of teaching quality.