Design Of Stratified Chemistry Homework In Junior Middle School Based On The Joint Force Of Teaching And Examination

As an enlightening subject,junior high school chemistry can stimulate students' interest in learning and enable them to experience the sense of achievement of learning,which is very important.Students' sense of accomplishment is to get satisfaction by successfully solving a problem,completing homework on time and achieving high or low test scores.Students acquire knowledge mainly through classroom teaching.Homework is an effective extension of classroom teaching,an effective way for students to master and consolidate knowledge,and a convenient way for teachers to get feedback.However,in front-line teaching,many teachers assign homework uniformly,and there is no difference in the amount and difficulty of all students' homework,which leads to some students can easily finish their homework,and some students can't finish their homework for a long time and lose the confidence in learning.Examination is an effective means of testing teaching effectiveness.Both examination and teaching are to cultivate students' key competency.They are the important process for students to promote and develop themselves.They should mix together to educate students.At the same time Examination is the main way to select good students.Therefore,it is very necessary for school teaching,examination and homework to work together.In the paper,research ideas and methods are according by practical problems in front-line teaching,searching lots of literatures and reviewing research results and experience from others.Once more,I also investigated the learning situation of our students and interview other chemistry teachers in the school and two other schools in the region to understand the current situation of students' chemistry homework.The study are based on the three times test scores and 2research object classes.Class 6 as the contrast and class 7 as the experimental class,the students are divided into A,B,C level.Different level have different assignments.According to the analyze by using SPSS software on the experimental class and the contrast class,as a result,different homework influence the different level students.After nearly a semester of research,the results are as follows:1.Stratified homework can improve the phenomenon of students copying chemistry homework.Because different level have different homework.They can finish the homework by their own.2.Stratified homework can improve students' interest in learning chemistry and correct their learning attitude.From the implementation of several tests after the stratified work,it can be seen that students' learning attitude has changed,and the number of questions completed in the test has increased.3.Stratified homework give a big help for the students with learning difficulties.The homework for C level students are easy.They can easily find out the answers in textbook.Therefore,the homework completion of students in level C has been greatly improved.Through the research,it can be seen that the stratified homework based on teaching and testing ability is effective,and it has a greater promoting effect on learning difficulties students than eugenic students and middle-level students.However,whether this stratified homework can be extracted into an effective model remains to be studied.