1. Defects of traditional multimedia teaching programs
At present, the traditional multimedia teaching system is an integrated system, which is composed of three parts: display system, sound system and central control system. On the one hand, due to the large number of devices and the different original positioning of the product, this integrated multimedia teaching system has many defects; on the other hand, the fatal defects of the projection equipment make the traditional multimedia teaching program a "killer" for teachers and students.
1.1 Cumbersome system design
This integrated system has many devices, complicated installation and wiring, and occupies classroom space. Usually, it is necessary to dig walls and make holes, which not only causes waste of funds, is not environmentally friendly, and is not convenient to use.
1.2 Poor system reliability and stability
Many devices of different brands and manufacturers are connected in series. As long as the reliability and stability of one of the devices is in question, the entire system will not work properly. Therefore, the risk is very large.
1.3 Extremely high cost of use
The lamp life of the projector is short, and it is usually replaced every six months. The cost of replacing the lamp makes many schools miserable. Taking 3500 lumens and 300 watt bulbs as an example, its price is about 2,000 yuan, and the cost of using it for three years is 12,000. (2 × 2000 × 3 = 12000)
1.4 Many technical defects are difficult to overcome
(1) Low resolution and blurred image
High-resolution, high-definition projection systems are expensive and few schools can afford them. At the same time, the brightness of the new projection bulb has dropped significantly after a period of use, and the quality of the projected picture has also seriously deteriorated. Not only does the image become unclear, but the color performance is also much worse than before.
(2) High environmental requirements and damage to teachers and students
The light is too strong, there is reflection on the projector; the light is too dark, which affects the students' writing.
If the brightness, resolution, and contrast adjustments of the projector are not balanced, students will over-adjust their eyes while watching the projection, which can easily cause visual fatigue and eventually myopia.
The country has formulated blackboard hygiene standards, classroom lighting standards, etc., which have clear requirements for blackboards and classroom lighting, but have not formulated multimedia classroom illumination standards, and the school has no standards to solve this problem.
1.5 Traditional multimedia courseware makes students lose interest
The amount of information is too large. The courseware that is not focused, the unnecessary courseware, the flashy courseware, the "single media" courseware, the computer-centric courseware, etc. make the significance of multimedia teaching greatly reduced, and the school "spent money" There is no "spend good money". Of course, the main reason for this is that the traditional multimedia teaching system pays too much attention to the improvement of hardware, and ignores the teaching itself.
Second, the development trend of multimedia teaching programs
From the simplest TV teaching, to projection teaching, to today's most advanced interactive innovative multimedia teaching, multimedia teaching has been keeping pace with the development of technology.
From another perspective, whether it is a projection instead of a TV, or an electronic whiteboard instead of a curtain, every upgrade of a multimedia teaching system is driven by the inherent needs of teaching.
Some problems facing basic education at present require the latest multimedia system to have the following points:
1. The equipment design is reasonable, simple and easy to use;
2. Long service life, no use cost;
3. HD display, health and environmental protection;
4. Support the "multimedia interactive classroom" teaching innovation model;
5. Fully realize teaching informationization.
More than sixty years ago, Chairman Mao Zedong pointed out: "The cultural education of the People's Republic of China is a national, scientific, and popular cultural education." The Party Central Committee with Comrade Hu Jintao as the general secretary conformed to the development and changes of the situation at home and abroad, seized the important strategic opportunity period, and made a major decision to implement the strategy of strengthening the country with talents and building a strong country with human resources.
Related to this, the country's investment in education has increased year by year, multimedia teaching is also rapidly popularized, and computers, projectors, electronic whiteboards, etc. have entered the classrooms of large, middle and primary schools. However, the various shortcomings of the traditional multimedia teaching system also obviously hinder the faster and better development of our education.
In September 2009, Premier Wen Jiabao clearly pointed out an important issue in multimedia teaching at the time of the 35th Middle School in Beijing: less information, less form of expression and single method of realization.
Therefore, the combination of the latest technology and a system that supports perfect multimedia teaching will be an inevitable trend for the future development of multimedia teaching systems.
3. Multimedia Teaching Scheme of Easy Pad
Tongfangyi Pad multimedia teaching system was developed to meet the needs of the development of the times and solve many shortcomings in the current multimedia teaching.
1. Scheme configuration
(1) One interactive smart tablet
(2) 1 set of Tongfang multimedia teaching system software
(3) 1 multimedia lecture table
2. Solution advantages
(1) This program has been tested and certified by the Central Audio-visual Museum and fully supports the construction of multimedia projects in primary and secondary schools.
(2) It completely solves the teachers 'multimedia teaching, lesson preparation and teaching needs, and provides an ideal platform for teachers' professional development.
(3) Carry out the teaching innovation model of "multimedia interactive classroom".
3. Scheme topology
4. Program features
(1) Integrated integration, multi-touch technology, high-definition high-definition picture quality, healthy eye protection
It integrates touch technology, computer technology, and digital high-definition display technology with leading technology. No special tools and professionals are needed, and only a power cord needs to be connected to start various functions.
Tsinghua Tongfang continues to innovate in science and technology and applies the most advanced optical multi-touch technology to its products, so that the product can support two people to operate the screen at the same time, as well as gesture recognition control. Through gestures to achieve page turning, rotating, erasing, zooming in, zooming out and other functions, teachers and students can fully experience the charm of humanized design while experiencing high technology.
Yi Pad products use a high-definition high-definition (1080P) display screen, incorporating high-definition eye protection health display technology, anti-glare display technology that can eliminate light interference, and safety anti-collision technology, to fully achieve beauty and health.
(2) Rich resources
In accordance with the subject knowledge system, a large number of basic resources such as picture materials, audio-visual materials, animation teaching aids, micro-grid courses, and extended resources such as test papers, literature materials, and teaching cases are integrated.
Type content usage characteristics
Basic resources, teaching materials, pictures, videos, audio, text teaching materials, lesson preparation, reference experts, professional development, professional production
Teaching materials Teaching reference materials, extended learning materials
Animation teaching aids demonstration, inquiry, dynamic icons, multimedia problem-solving teaching demonstration inquiry learning
Explain the knowledge and problems of the micro-grid course examples
Design, transcript, comment, reflection and related resources of high-quality multimedia multimedia courses
School personalized resources teaching design and lesson plans, teaching courseware, test papers, teaching materials, teaching reference personalized resources
Teaching material: Tsinghua Tongfang Educational Technology Research Institute aims at the teaching and research equipment and classroom teaching needs of multimedia teaching in elementary and middle schools, based on the syllabus and the knowledge system of the new curriculum standards, scientifically and systematically design and produce the pictures, videos, audios and texts needed for teaching , Teaching reference materials, expanded learning materials and other multimedia databases composed of various teaching materials.
There are 8 subjects in the high school version, 7 subjects in the junior high school class, and 2 subjects in the elementary school version.
Animation teaching aids: It is designed with knowledge points or teaching topics as the unit to meet the needs of breaking through difficult teaching points and organizing classroom interactive activities. The types of animation include scientific modeling animation, simulation presentation animation, dynamic icons, interactive exercises, multimedia problem solving, perception animation, recitation animation and other different types. Use animation to change the way knowledge is presented, reveal the essence and internal relationship of knowledge, use animation to break through the teaching problems, and make animation an effective teaching tool.
High school: 8 subjects, 2079 animations;
Junior high school: 7 subjects, 1308 animations;
Primary school: 2 subjects. 1474 animations.
Teaching case database: a selection of excellent cases from the national and provincial education societies and teaching and research departments organized by various disciplines and teaching competition competitions, as well as the award-winning case results of national subjects, a series of case resources database, each case is based on teaching design, teaching Courseware, classroom recording, teaching reflection and other contents fully present the teaching process, and at the same time include teaching resources related to the course, such as instructional design, courseware, pictures, audio and animation and other teaching resources, which can meet the classroom repeated observation and teaching research.
Micro-grid example library: It is a series of micro-grid courses aimed at students' learning points and difficulties, with the help of multimedia teaching methods, and a demonstration demonstration by famous teachers.
This series of courses does not repeat the classroom teaching content, but a series of thinking questions designed for students' cognitive misunderstandings. Through elaborate questioning and instructive and in-depth explanations, and with the help of multimedia methods, students can fully understand Learn knowledge content, learn to think and solve problems. At the same time, it is also a reference material to help teachers understand textbooks deeply, help teachers prepare lessons and conduct business learning.
All courses are in the form of streaming video format, organized according to subject, topic, and problem. It is simple and convenient to find and clear and smooth to watch. All are taught by famous teachers.
(3) Rapid production of lecture notes, interactive multimedia teaching
With resource browsing, resource selection, resource packaging, resource playback and other functions, it can be used immediately to help teachers choose materials conveniently and quickly create personalized multimedia handouts.
Lectures are played directly in the classroom teaching process, combined with the interactive smart tablet to make the knowledge visible, audible, and touchable, creating a lively and interactive classroom teaching environment.
(4) Open platform to create personalized multimedia teaching for schools
The installation methods are flexible and diverse, including wall-mounted, embedded and movable brackets. The school can choose how to install according to its own situation.
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