Junior High School Students Learning Changes In Typical Error Patterns And Attribution Analysis

"The graphics changes" is a new noun in the new curriculum2011(Revised Edition), it not only includes graphic strans formation, but trigonometric function, projection, enrich the content of motion graphics."Standard" will be located in the grounds ofgraphicsproperty andreflectsthe changing perspectiveto understand graphical, intuitive, focus on improving the students geometric space imagination, reasoning ability. The present study focused on:students of grade two in most graphical content, typical causes exist in the problem solving in the errorand error.Text analysis,est, interview and document analysis method by using the,Selection of the second grade junior high school translational and rotational symmetry has been learned, as research content,Works by teachers, students interview (operation)based analysis.For "the graphics changes test"(including translation, rotation,symmetry problem, comprehensive application of four types),Investigation of the3high schools in Chongqing City,2levels and251students, the students errors are attributed to analysis, and based on the teaching of junior high school "the graphics changes" puts forward related suggestions.Research conclusions are as follows:(1)the students understanding of the concept of the existence of translation strategy mistakes, students on thetranslation.(2) the students to understand the concept of graph rotation surface, conceptual confusion; for their mappingproblem will picture wrong, especially graphics rotation of three elements of the control, many students will ignore the1-2elements.(3) the students are not in place to determine the symmetry exists the concept understanding, can not beabstracted into geometric graphics in life; for the folding problem, application of symmetry properties is not flexible. (4)students in the comprehensive applications, spatial imagination, difficult to convert graphics, text, symbols of three languages.The shortcomings of this research are:due to objective conditions and researchers limit their academic level,design of test, test validity needs to be improved. Due to the lack of the experience, analysis of the test results is not comprehensive enough, need theory on level of ascension.