China Education Equipment Purchasing Network News: Microscope is a very important instrument in biological experiments, then the operation of the microscope is carried out in steps, the actual operation of the experimental class accounts for a large proportion of teaching practice, many students Interest is generated at this stage, a lot of content in biology texts. All need to cooperate with the operation of the microscope to complete, then what should be done in the usual teaching work?
1. The operating standard of the microscope. The operation of the microscope is divided into many steps. Each step must be carried out very carefully. Only in this way can we develop good operating habits in the future, otherwise students will often misuse the microscope. Or the operation procedure is wrong, and the image cannot be seen clearly, which will have a great influence on your teaching progress.
2. The speed of completing the adjustment of the microscope, that is, the speed at which the microscope can clearly image, depends on the familiarity of the students. The speed of the completion time directly determines the progress of the biology course. So this requires that the actual demonstration operation of the biology teacher in the microscope should be detailed, transparent and standard, and your operation habits directly affect your students.
3. It is necessary to strengthen the cultivation of students with careful and objective observation skills in the process of using a microscope. First of all, students should understand the relationship between biological microscope, eyepiece, objective lens and magnification, and can quickly realize how much magnification a certain piece of film should be placed under, and understand the unit expressed by micrometer of microscope eyepiece. length.
4. The ability to recognize things during microscope observation, how to find the focus when observing a slice, the reason why the imaging focus cannot be found, and the imaging factors of the microscope that are affected by the thickness of the slice. At the end of the experiment, all students are required to Have a clear understanding of the above questions, so that you can fully grasp what you have explained, and arouse your interest in the biological experiment class.
5. Based on the above, a teaching-grade microscope with excellent optical effect is necessary for your teaching work. It can bring you extremely high efficiency and high-quality teaching effects. Make full use of the interesting images of the teaching microscope to mobilize students The enthusiasm to complete the work.
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