At the beginning of the school year, the students were chatting when the teacher walked in. The teacher said:
– Do you know that in the past, when our country was poor, we had to eat sweet potatoes? Because we ate sweet potatoes, we would get hungry quickly, which meant we had to go to bed early. Going to bed early led to having many children, and having many children resulted in poverty. Poverty meant we had to eat sweet potatoes… And this cycle continued endlessly. Now, please open your textbooks as we will learn about “Periodic Motion“.
– Students: ???
This article was submitted by Phan Công Tưởng to Khoa Học
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