1. In high school, the Chinese teacher was explaining a poem and mentioned: "Stopping to admire the maple forest in the evening glow," The teacher said, "This 'sitting admiration' ah," everyone was silent for a moment, then burst out laughing.
2. Male students stand on my left, female students on my right, others remain still... except one who didn't move.
3. In primary school, every time before an exam, our homeroom teacher would always say, "I'm really worried about you guys, I'm like the eunuch who is more anxious than the emperor!" She's clearly an old lady, so why does she like calling herself a eunuch?
4. One day it was raining heavily outside, the teacher walked into the classroom with water all over his face, looking for something at the lectern, after a while he asked the front row students, "Where's my face wipe?"
5. Line segment A is half of line segment B, so how much is line segment B compared to line segment A? (The whole class was silent, waiting for a profound answer, after a long pause) Line segment B is two halves of line segment A. (dizzy)
6. In junior high school, a math teacher was explaining equation transformations, rolled up his sleeves on the podium and loudly announced: "Classmates, pay attention! I'm about to transform!"
7. In university, during a "Military Theory" class in a large lecture hall, the teacher had a small microphone. Halfway through the lecture, the teacher paused and said, "I'll be right back." Then we heard footsteps, the door closing, a sound of "Sss~", followed by the sound of water splashing on the ground, another "Sss~", the door opening, footsteps again. When the teacher returned to the classroom and said "Let's continue," over a hundred people in the classroom couldn't help but laugh out loud, some even holding their stomachs.
8. A student was making noise, our teacher said, "Stand on the blackboard!" That's quite a challenge.
9. My junior high school teacher liked to immerse himself in the problems he was solving. "My base radius is 20cm, my height is 50cm, then I..." Someone from below said, "It's a rice bucket," the whole class burst out laughing.
10. The teacher said someone was very smart, having six of the seven apertures open, just as that person was feeling smug, the teacher added, "But one aperture is completely closed."
11. Our junior high English teacher was bald. One day in class, he asked a student, "What day is today?" (Am I bald?) The student thought for a moment and answered, "Yes."
12. In the final math test of senior three, a boy asked, "Teacher, I don't have a pencil for drawing, should I borrow one or use a pen?" The teacher (an elderly woman) replied, "It's up to you, big or small."
13. Our high school algebra teacher said, "No talking aloud."
14. The Chinese teacher explained, "Why did the poet stop his carriage..." (referring to the line "Stopping to admire the maple forest in the evening glow") "Do you know why the poet stopped his carriage?"
15. A high school chemistry teacher and head of discipline deliberately made mistakes while solving problems and then asked a student to find the errors. After the student struggled and finally answered, the teacher praised him seriously, "Good, you've found the teacher's torn butt (mistake)." Everyone was stunned, and after class when the teacher walked out, the whole class burst out laughing.
16. One day, our high school math teacher was explaining the periodic table of functions. Excitedly walking down from the podium, he said to the whole class, "You still don't understand the concept of 'period', pigs are smarter than you." Then he pointed to a girl in the first row and said, "Do you know what a period is? Explain it to them." The whole class fainted.
17. In junior high, we were required to wear uniforms during the flag-raising ceremony. But there were always some people who didn't wear uniforms, or only wore pants or shirts. Before each flag-raising ceremony, the principal would hold a loudspeaker and say, "Some students don't wear shirts, some don't wear pants, some don't wear either."
18. The Chinese teacher was teaching the lesson on the Red Cliffs, mentioning how Cao's soldiers trampled each other on the Huarong Road, and sighed, "Human flow is terrifying..."
19. One day in math class, I noticed a green leaf stuck on our math teacher's tooth (the teacher probably had leek dumplings for lunch). After a while, the leaf disappeared... and after class, I saw it on a girl's neck in our class.
20. Our junior high female Chinese teacher had just graduated from the Normal University. Everything was fine except she liked to suddenly ask students to write terms on the blackboard without warning. The method was, the teacher would dictate a word, and the student would write it down along with its definition. Once, she picked a boy who didn't like listening. The teacher kept repeating "Intermittently," and the boy scratched his head in front of the blackboard for several minutes. Suddenly, he quickly wrote: "Cheap goods: nasty, not a good thing." The whole class burst out laughing, and the female teacher was so angry that her face turned red, unable to speak.
21. In high school, once, our Chinese teacher probably forgot to zip up after returning from the restroom. The classroom was a bit chaotic, and the teacher, who liked standing chest-out, seeing no one paying attention to him, puffed out his chest and pointed to himself, "Classmates, look here, everyone look at me, look here!" There was a commotion below...