Why is it so profound?
Because the geography teacher can draw a map on the blackboard with a piece of chalk.
World map, continents and major countries.
As for the map of China, there is no difficulty at all.
Moreover, after graduating from high school and going to college, teachers in this college rarely write on the blackboard.
Of course, it may also be because I often skip classes. . . Some blackboard writing needs to write a lot of classes, and my buddy is not in the classroom. . .
How embarrassing!
To say that the blackboard writing written by this teacher really attracts students.
Why?
Because of words.
Words can make people get strong * * * sounds. From words, we can get more things than "sound" This will make students more impressed, and good handwriting is really enviable.
Just because you can write on paper doesn't mean you can write on the blackboard.
I remember going to the teacher's office in primary school and seeing the teacher practicing chalk writing in it.
Because the blackboard is hung on the wall, when writing chalk, your arm should be raised. After a long time, it is really a very tiring thing. To make every line of this chalk word so neat, you must have a straight body, a flat line of sight and a stable lower body.
This is also a very tiring thing! ?
I remember when I was in junior high school, there were students on duty every day. One of the important tasks of this student is to clean the blackboard ten minutes before class, which is convenient for the teacher to use in the next class.
In fact, no one likes to clean the blackboard.
Why is this? Because there is dust in the chalk, there is bound to be so much white dust on this body after wiping the blackboard. How dirty it is to get it on the clothes!
Then I forgot when it happened, and it suddenly occurred to me. What about the teacher?
When the teacher is giving a lecture, a lot of words are written on this blackboard, which is often erased and erased. In this process, how much chalk dust should the teacher get on his body?
Maybe that's why teachers' hair is so gray. This is chalk powder for many years. I don't know how much it has entered the teacher's lungs. Is this the reason why many teachers cough?
Although the profession of teacher seems to make money, it is well paid. However, what is behind the scenery, only oneself know.