With the rapid development of China's higher vocational education, the students and enrollment of higher vocational education are mixed. Engineering drawing and drawing reading is a professional basic course to train students to draw and read engineering drawings. It is characterized by strong abstraction and high demand for spatial imagination, and the teaching quality will directly affect students' subsequent professional courses. Through the research on teaching methods of engineering drawing and drawing recognition, combined with the characteristics of higher vocational students, micro-courses, blue ink cloud courses and Solidworks software are applied to improve students' interest in learning, thus cultivating students' spatial imagination and logical thinking ability and further improving teaching quality.
In recent years, with the rapid development of society and science and technology, especially the adjustment of economic and industrial structure, the demand of society and enterprises for high-quality technical and skilled talents has gradually expanded, and the state has paid more and more attention to the development of higher vocational education, which has achieved unprecedented development. However, the student base of higher vocational education is uneven, and some students' self-study ability and self-control ability are poor, which leads to a large gap in grades and individual differences in graphic thinking. Engineering drawing and drawing understanding is a professional basic course for most engineering students. Mainly cultivate students' ability to draw and read engineering drawings.
Because of its strong abstraction and high demand for spatial imagination, the quality of teaching will directly affect students' subsequent professional courses, which determines the arduousness and importance of learning this course. Therefore, in the face of the specific teaching content of Engineering Drawing and Surveying, some students are "but I feel the harmonious heartbeat of the sacred unicorn", while others are "puzzled". In view of these characteristics, traditional teaching methods can no longer meet the requirements. How to apply information technology in teaching to improve the interest in learning courses and the quality of teaching has become an important topic for teachers to study. This paper will talk about the necessity of informatization application of engineering drawing and map reading from three aspects: traditional teaching methods, analysis of the characteristics of higher vocational students and application of informatization means.
First, the traditional teaching methods of "Engineering Drawing"
The traditional teaching method of "Engineering Drawing and Drawing Recognition" pays attention to the teaching of classroom theoretical knowledge, which helps students to form a knowledge structure and system in a short time. The course itself is complex and special. Traditional teaching is characterized by "transmission-acceptance-communication", which mainly emphasizes the leading role of teachers. Teachers can completely control the classroom and help students concentrate. Advocating class teaching system is convenient for teachers to organize and monitor the whole teaching process, but the traditional teaching of engineering drawing and map recognition still has shortcomings.
Engineering Drawing and Drawing Understanding is a practical course. In the process of teaching, we should not only pay attention to teachers' theoretical explanations, but also have some practical exercises aimed at students, pay attention to developing students' own abilities, and take students as the main body and teachers as the leading direction. In terms of teaching methods, although there are PPT and teaching aid models in the traditional teaching process, due to the resource limitation of teaching AIDS, most of the exercises in "Engineering Drawing and Mapping" can't find three-dimensional models, which is still a severe challenge to students' spatial imagination and logical thinking ability. This form is not conducive to mobilizing students' enthusiasm for learning, and can not make students have a strong interest in "engineering drawing and drawing recognition". Giving up once you don't understand can't meet the needs of students' development.
Second, the characteristics of vocational college students
(a) keen on online entertainment. Today, in the information age of science and technology, students in higher vocational colleges use the Internet mostly for entertainment, but less for study. The phenomenon of "keeping your eyes open and your mobile phone on" is serious. Online games, TV series, WeChat, QQ information exchange and online shopping are all popular forms of entertainment for students. Playing mobile phone in class is more serious.
(B) Vocational students' extracurricular activities are rich and colorful. After-school activities of higher vocational students include part-time, practical training, internship, participation in various school clubs, etc., which shows that students have strong practical ability, practical ability and communication ability. However, higher vocational students' autonomous learning ability is poor. Most vocational students' entrance scores are between 300% and 400%, and 100 is equivalent to 40-53 points. Their foundation is weak, their autonomous learning ability is not strong, and they lack correct learning methods, so they are weaker than ordinary college students in these aspects. Because of their strong hands-on ability, they don't like to sit in the classroom and have theoretical lessons, so they can't concentrate on listening to the teacher. In fact, it is not that they don't like learning, but that they are lazy to learn and have weak self-control ability. They don't have a proper study plan, can't stick to it for a long time, and are easily influenced by external factors. According to the characteristics of students analyzed above, we can see that traditional teaching methods are not suitable for higher vocational students, so it is essential to adopt information-based teaching methods in the classroom.
Third, information technology.
The application of information technology in the teaching of "Engineering Drawing and Drawing Recognition" integrates characters, patterns and music. By creating situations, questioning and exploring, students' active learning ability has been well exercised and cultivated. There are many kinds of information technology. According to the characteristics of higher vocational students' love for the Internet, online video of information technology and online teaching courseware can be adopted. In view of students' strong practical ability, they can learn while practicing and submit their homework online. In view of the poor learning ability of higher vocational students, we can take various forms, such as learning tool software, blue ink cloud classroom homework, cumulative learning points to evaluate normal grades and so on. At present, the application of information technology in the teaching design of engineering drawing and drawing recognition is mainly discussed from the following aspects.
(A) the use of micro-courses. The characteristics of micro-course are: short and pithy video, usually about 5 ~ 15 minutes, clear and independent knowledge points of course content, and flexible choice. Micro-course can effectively solve the problems of ignoring students' cognitive needs, lacking specific learning objectives and lacking realism in teaching situations by virtue of its distinctive characteristics such as short learning courses, modularization, semi-structure and real application scenarios. About the use of drawing tools, orthographic projection, drawing three views of basic body, etc., you can make micro-lesson videos for pre-class learning. Students can automatically adjust the viewing time and frequency according to their own situation, so as to preview before class and review after class. And you can also understand your own shortcomings through micro-lesson videos, and improve students' mastery of knowledge. The use of micro-lesson video can give consideration to both students with good foundation and students with weak foundation. The study time is relatively random, and the study duration can be adjusted freely, which is more acceptable than the pure traditional classroom.
(2) Use blue ink clouds. With the advent of the Internet era, students' use of mobile phones is getting higher and higher, and teachers and students often play cat-and-mouse games in traditional classrooms. In view of this feature, the mobile phone can be turned into a favorable learning tool through the blue ink cloud classroom. In the process of teaching, teachers use mobile phones to download Blue Moyun classroom, upload micro-lesson videos, electronic textbooks, PPT, lesson plans and exercises. And use APP to teach. Combined with the teaching mode of flipping the classroom, students preview before class (students install the Blue Ink Cloud APP on their mobile phones before class, enter the classroom created by the teacher, and complete the pre-class tasks assigned by the teacher, which can also make the teacher's preparation for students more clear). Classroom learning (including classroom sign-in, classroom questioning, knowledge test, etc.). Improve students' concentration and enthusiasm in class), review after class (teachers upload homework, answer questions after class, and create brainstorming, etc. ) and teaching evaluation, so that teachers can keep abreast of the situation of students in the class.
(The application of SolidWorks 3D software. "Engineering Drawing and Drawing Understanding" mainly studies the ability of drawing and reading drawings, and requires students to form two-dimensional and three-dimensional transformations (axonometric drawing, supplementary drawing view, etc. ) and the three-dimensional and two-dimensional (three-view) in their minds. Due to the individual differences of students, some students are "but I feel the harmonious heartbeat of the sacred unicorn", while others are "puzzled". Traditional teaching allows students to understand with models, but it is hard to imagine new problems without models. This problem can be demonstrated by applying SolidWorks 3D software to create a 3D model, which can be directly converted into three views for students to see. Three-dimensional solid modeling method is intuitive and easy to arouse students' interest, and it is easier for students to understand the mutual transformation between two-dimensional and three-dimensional, thus improving the teaching quality of engineering drawing and map recognition.
Four. conclusion
The diversity of students in higher vocational education and the difference of student base make students learn engineering drawing well, and other courses become skilled talents to adapt to the times. The traditional teaching mode can not fully meet the requirements. Only by keeping up with the pace of the times, combining information-based teaching methods with traditional teaching methods, and learning from each other's strengths, can we go further on the road of education.
The application of the above information technology in engineering drawing was collected by Zhong Da Consulting Company.
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