Teaching Case Design Of Mechanical Drawing Course In Secondary Vocational School Based On Task Driven Teaching Method

In the 21 st century,China's secondary vocational education has carried out a number of reforms in education.Among them,there have been breakthroughs in teaching plans,textbooks,teaching methods and other directions,and the quality of talent training has been significantly improved.But there are many unanswered questions.For example,teachers lack enterprise experience and do not understand the talent needs of enterprises,teaching materials lack vocational education characteristics,and teaching cases are divorced from the actual production,etc.Due to the continuous progress of teaching equipment in recent years,the application of multimedia teaching is more and more extensive.From the perspective of the classroom teaching of mechanical drawing,the three-dimensional,visual design and view have been realized.However,compared with the traditional ruler diagram teaching,multimedia teaching ignores the process of drawing and only pays attention to the result.In the choice of teaching content,ignoring the professionalism of secondary vocational education,the teaching cases which are out of date and divorced from current production are mostly used.Through the study of vocational education connotation,research and discussion on the secondary vocational education demand skilled talents.For example,combine the gap between the existing teaching methods,combine with the characteristics of mechanical drawing course and put forward to "introduction stage,task analysis-task phases,tasks guide and task evaluation stage" task driven teaching method for the four phases of mechanical drawing course four stage task driven teaching case design.The four-stage task-driven teaching method was applied to class 1902,and the traditional teaching method was applied to class 1901.After a semester of experimental teaching,it is found that the class participation rate is 46% in class 1901,96% in class 1902,64% and 90% in mid-term exam,and 74% and 92% in final exam.Through the exploration of the four-stage task-driven teaching method in the course of mechanical drawing,the teaching cases that are in line with the industry are developed to encourage students to take the initiative to learn and explore,and to master the new techniques and technologies in the actual production.Stimulate students' interest in learning and cultivate their comprehensive quality.