Would you like to try an American laser pointer
Teachers can use the laser pointer to indicate the location of the content they are telling. Modern teaching often uses PPT, and the teacher will prepare the PPT in advance and then put it in the classroom. Demonstration, because there are often more points on a page of PPT, in order to facilitate the teacher to tell the students the location of the points when demonstrating the PPT, the teacher will use a laser pointer when giving a lecture. However, the existing high powered laser are relatively similar in structure. They are all long strips, have no novelty, are inconvenient to carry, and are easy to lose.The laser pointer is a modern pointer.
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Holding it can relieve stress and tension, and you can also feel the sense of accomplishment of being a teacher. A good laser pointer is fluent in functions. The most basic thing is that it can point to wherever it is spoken, and the student's eyes follow wherever it is pointed.But the laser pointer here also has a shortcoming, that is, it is dangerous. If excessive laser intensity irradiates the macula of the eye, it may cause permanent damage. There are many reports in the news that children are injured when playing with a laser pointer. However, it is difficult to judge whether the laser exceeds the standard, so be careful when using it.
2021-11-08 01:22:28
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