Liu Yin Office of Education Equipment and Work-Study Program, Nanjing City, Jiangsu Province, Nanjing 210002, China
With the development of multimedia and computer technology, multimedia teaching has become an indispensable teaching method for subject teaching. In recent years, with the popularity of electronic whiteboard technology, many schools are equipped with different brands of interactive electronic whiteboards.
Nanjing began to gradually equip all districts and counties with interactive electronic whiteboards in 2007. At the beginning, the equipment was experimentally equipped in a school-by-school manner. The purpose was to allow school teachers to have a step-by-step process of understanding interactive whiteboards and avoid a lot of Teachers can't make good use of resources caused by resources when they are equipped.
But three years later, except for some districts and counties who have done some work in training and competition, the whiteboard has not been popularized in ordinary classrooms. The reason is that teachers do not need whiteboard technology, but so far, the electronic whiteboard has no small deviations from teachers' daily teaching habits in terms of software and hardware, so that teachers have always adapted to the whiteboard for a long time without letting the whiteboard To adapt to the daily teaching habits of teachers, we will see that teachers no longer have a long-term motivation to continue to learn the courseware making software that comes with the whiteboard or apply the whiteboard function in the classroom, and the electronic whiteboard has become a "Touch screen", "substitute for curtains" and "competition props" lose their true meaning of changing traditional classroom teaching.
Through the analysis and combing of the electronic whiteboard equipment situation in the past few years, the author believes that the existing electronic whiteboard and related equipment with electronic whiteboard function have many problems in the classroom teaching application. The following is elaborated from two aspects of hardware and software:
1. Problems in the hardware
1. The electronic whiteboard is different from the curtain. It cannot be stored in the classroom. It will definitely occupy a part of the blackboard space. From the visual effects and use, it will have a certain impact on ordinary classroom teaching, and many special classrooms equipped with electronic whiteboards do not affect the blackboard. The use of the electronic whiteboard was placed on the side of the blackboard, which caused the students at the far end of the classroom to view the surface of the whiteboard too much. The reflection of the whiteboard surface material made some students unable to see the projected content clearly. Although there are many integration schemes of electronic whiteboards and ordinary blackboards, the blackboard parts of the classroom must be transformed. From the perspective of usage habits and protecting students' eyesight, the electronic whiteboard device must be installed in the middle of the blackboard when it is installed in the future.
2. The traditional electronic whiteboard is only an input device and cannot be used as a display output by itself. Therefore, the traditional electronic whiteboard must be equipped with a projector. If only the electronic whiteboard is used to replace the curtain when the electronic whiteboard is equipped, it will cause the original use in the classroom. In ordinary telephoto projection, when the teacher uses the whiteboard, the light will hit the eyes directly, causing eye discomfort. Even when the curtain is still used before, no teacher is willing to lecture in front of the curtain, which is the reason. Moreover, when the teacher walks in front of the whiteboard, the body will block the projection light, which seriously affects the use of the whiteboard. The ideal equipment solution is to replace the original telephoto projector with a short-focus or ultra-short-throw projector (with a projection size of 30cm ～ 50cm of 80 inches) in conjunction with the whiteboard when the electronic whiteboard is equipped. The impact is minimized.
3. More and more existing whiteboard solutions are not limited to traditional electronic whiteboards. From the beginning of the day painting pen to the external virtual whiteboard to the current built-in virtual whiteboard projector and flat-panel TV with whiteboard function, more and more solutions. If you still focus on the traditional physical whiteboard, equipped in schools that are not suitable for physical boards, the effect will be counterproductive. Schools should choose their own products according to their own actual conditions (primary and secondary schools, classroom size, number of students)
Second, the problems in the software part
1. Just looking at the whiteboard hardware, no matter what kind of program (virtual whiteboard, LCD TV, etc.), as long as it can realize the touch function, it can be said to be a product with electronic whiteboard function. As for the double-touch multi-touch function recently developed by some joint venture brands, on the one hand, it can be seen as a display of technological innovation and manufacturers' R & D strength, on the other hand, it may provide better creativity for some open classes and competition classes, but There is no direct impact on conventional teaching. For interactive electronic whiteboards, since the functions in terms of hardware are not unique, then only the users and their own software are bundled together, so manufacturers often pay more attention to the training of users in software. For manufacturers, Software is even more important than hardware. Therefore, in order to match the characteristics of their own products, whiteboard companies are also for users to produce rich and interesting demonstration courseware in daily use. Courseware making software and supporting resource libraries will be attached (the projector with whiteboard function and some flat-screen TV solutions are temporarily not equipped with matching courseware Software and resource library), but in order to protect their own interests and intellectual property rights, most of these types of software can only be used with their own brand of electronic whiteboards, so between electronic whiteboard products, or for other products with whiteboard functions, the software (driver , Resource library, courseware production software) cannot be used universally, forcibly use their own products to kidnap users. The reality is that the school may purchase different brands of electronic whiteboards in different periods and in different equipment projects, resulting in teachers having to learn two to three kinds of whiteboard software, making different courseware under different hardware environments, and various The whiteboard competition has become a platform for manufacturers to promote their own software and hardware products. Seriously affect teachers' recognition of whiteboard products and their enthusiasm for daily use.
2. Different vendors have different understandings of classroom teaching, and it is reflected in the software. What is more obvious is the difference between domestic brand whiteboard software and foreign brand whiteboard software. The software of foreign brands mainly focuses on interaction and innovation. If teachers use courseware in daily teaching, they must use the whiteboard's own software to prepare interactive content and models for class use during the lesson preparation. The built-in resources and models are combined with primary and secondary school textbook content. The degree is lower. The domestic whiteboard software and the course content are closely integrated. The relevant courseware and mathematical and physical models in the textbook are basically ready-made. The use of the software is more conducive to teachers' daily lesson preparation. But whether it is a domestic whiteboard or a foreign-funded whiteboard, the supporting software requires the teacher to receive special training from the manufacturer before it can be used.
3. Conclusion
Due to the deficiencies in hardware and software of traditional electronic whiteboard equipment, finding a software product that is simple and easy to use, conforms to teachers' usual usage habits, is rich in resources, and is compatible with all whiteboard solutions on the market today. Whiteboard technology is truly a key factor in classroom teaching.
Advantages of unified software platform:
1. Solve the situation where mixed teachers of multiple brand whiteboard products in schools are unable to adapt.Teachers do not need to go to learn different software in order to teach on different electronic whiteboards in different classrooms, make different courseware, and then all classrooms or Other schools can use the same courseware resources to teach lessons. Perhaps the unified software platform cannot realize some fancy functions of the software that comes with the electronic whiteboard, but it can actually solve the various problems encountered by teachers during class and facilitate teacher preparation.
2. In the future, whiteboard equipment will be easier to introduce diverse solutions without considering software and resource issues. Various excellent courseware resources produced by teachers under the unified platform will be easier to share resources on the network, which will help the expansion of online resource libraries in the future.
3. The training can be unified, without considering the brand diversity of the whiteboard, the whiteboard training can be included in the city's teacher training platform, and the system training can be carried out in batches and at different levels to promote the application technology of the electronic whiteboard. .
4. Competitions can be carried out more easily and fairly. A unified software platform can bring greater fairness, rather than let the grade of the whiteboard used and the advanced level of hardware become the key to determine the outcome of the game, let teachers put down the burden of using the equipment and focus on investing in real classroom teaching In the meantime, it also keeps the competition from becoming the capital by which manufacturers brag about the performance of their products.
5. Focus on the rationality and applicability of the solution in the development and operation of government procurement plans in the future, without considering the advantages and disadvantages of different vendors' products in software, tailor the appropriate equipment plan for the school, and let teachers feel To the help of electronic whiteboard technology for routine teaching.
In recent years, while piloting the installation of electronic whiteboards and popularizing interactive teaching concepts, Nanjing City is also actively looking for technologies and methods that can make up for the deficiencies of the existing whiteboard technology. After all the shortcomings, there is a little concern about whether the electronic whiteboard can be truly integrated into conventional teaching at this stage. If the electronic whiteboard only uses the touch function as a tool for presentation slides, then this technology loses its true meaning, and it will also cause a lot of waste of equipment funds. Only by recognizing the deficiencies and actively seeking solutions to clear the various obstacles in the deployment, use, training and competition of electronic whiteboards can this advanced technology be effectively used by teachers and get healthier in the field of education development of.
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