All friends who learn medicine know that the expert could not touch the sample with hands when he is illustrating a pathological sample, and in this way students could not know where he or she explains. In fact, he or she could point the places to people who are listening to his or her lessons smoothly if he or she has a laser pointer pen.
Laser pointer pen is a good helper for clinical teaching, and it could make users to play their body languages to the biggest extent while they are teaching clinical knowledge by means of visual laser in low power, making the teaching and speeches more active and perfect. In this way, laser pointer pen could solve many inconveniences in clinical teaching, and then all people who are listening to lessons could understand better.
Laser pointer pen has several functions, and it has magnifying function in order to attract visual attention to important contents and to improve learning effects. Laser pointer pen also has wireless remote control function, and the expert or teacher could control the computer wherever he or she is at the classroom, and he or she could adjust the contents according to the process of the lesson at any time at any places.
Laser pen pointer could be divided into red laser pointer, green laser pointer and blue and purple laser pointer. Red laser pointer has red light which has 650nm to 660nm wave length, and it is a kind of laser used on DVD disks, and it is the earliest and the most popular laser pointer pen, and it is also the cheapest on the price and belongs to semiconductor laser. Green laser pointer has green light which has 532nm wave length, and it belongs to solid laser, and it is widely used in stars pen because of its high visibility. Blue and purple laser pointer has blue and purple light which has 405nm wave length, and it is used on blue disks and gets close to UV-light, and it could stimulate fluorescence and could be used to check whether money is true or false.
At present, green laser pointer pens get more and more popular in teaching, and experts or teachers could make their classes more active with the help of laser pointer pens. In this way, students could also understand better and learn much more from their experts and teachers.
Laser pointer pen is not only a good helper for clinical teaching but also is a good helper for all teachers.
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