First, teaching AIDS
1 With the aim of spreading science and technology and educating people, it is a complete scientific and technological media and an indispensable equipment for young people's scientific and technological activities. Teaching AIDS used in scientific and technological activities have physical teaching AIDS and replica teaching AIDS.
2. Specimens or samples from nature: such as biological specimens, mineral specimens, fossils, rocks and rare animal specimens used in scientific and technological education activities.
3. There are also imitations and models of specimens: some specimens are very precious (such as skull fossils from Peking man) and should not be spread everywhere, so people have made various imitations and models to spread scientific and technological information.
4. Another example is the human anatomy model, and the models used in the three models of navigation, navigation and automobile. Teaching AIDS can also be divided into demonstration and practice.
Second, the characteristics of teaching AIDS
1, intuitive. Intuition is often used as a teaching aid in scientific and technological activities. Visual teaching AIDS can make knowledge concrete and visual, and create conditions for students to perceive, understand and remember knowledge.
2. practicality. Most physical media can be touched, used and dissected, which is of special significance for cultivating students' skills.
3. It has research value. The scientific and technological information contained in physical media is rich, and there are many contents that human beings have not extracted. It is itself the object of scientific research. For students with little knowledge, many physical media are also valuable for research, such as children disassembling toys and middle school students dissecting animals.
4. Typical. The typicality of visual teaching AIDS makes it meet the teaching requirements, can effectively form a clear representation, and guide students to understand the essence of things from the displayed phenomena. From perceptual knowledge to rational knowledge, promote students to master knowledge comprehensively and profoundly.
5. It needs the cooperation of language media and written media. Some teaching AIDS should be explained, and teachers must give guidance and explanation when using them, so as to guide students to observe and inspire students to think.