Investigation And Research On The Status Quo Of Ordinary High School Students' Technical Drawing Ability

Pattern expression is one of the five key competencies of the General technology.Technical drawing as an important content of the pattern expression,plays an indispensable role in the entire pattern expression.However,in the course of the internship,through the classroom observation of the first-line general technical teachers and the after-school interviews of part of the students and teachers found that because the first-line teachers can not correctly grasp the connotation of the technical drawing teaching and their own drawing ability is limited,leading to the ability of students to draw the technical drawings difficult to improve and the status quo of student drawing ability is not optimistic.In view of the above problems,the author has carried on the investigation and research on the current situation of the technical drawing ability of ordinary high school students.Taking the high school students and the first-level teachers of senior general technology of the W school in Nanjing as the research object.The first step is observation,then analysis the problems of students in the technical drawings of knowledge,reading and painting aspects.And through the test papers and interviews analysis the main reasons for the problems of students.Finally,in view of the problems of students in the technical drawings of knowledge,reading and painting aspects,given the corresponding teaching recommendations.The survey found that students in the technical drawing of the main problems are:(1)Students do not understand the ability to understand the depth of the lack of basic reading ability,not good at the pattern processing,can not get from the drawings of the basic effective information,Lack of proper technical drawings to draw the foundation;(2)Students in the process of drawing the lack of imagination,the lack of ability to analyze the pattern of the pattern,the mapping method is not in place;(3)Students in the process of drawing technical drawings,thinking The degree of participation is not high,in the process of technical design can not accurately express their own ideas,and innovation is not strong;(4)Students to draw a technical drawing time is shorter,the corresponding consolidation activities less,normative,Regular sense of consciousness is not strong.According to the problems of high school students in the drawing of technical drawings,the following teaching suggestions are given:(1)being based on the cognitive tools,use the cognitive tools for teaching;(2)attention to the formation of students thinking,training mapping thinking;(3)grasp the teaching language art of the pattern,enrich the teacher's own knowledge reserves;(4)stimulate students to learn and grasp the correct practice methods,and teachers timely feedback practice results;(5)strengthen the teaching of computer-aided mapping course.