Three in the three-foot platform is not a specific number. On the contrary, the ancients often used a divisor to represent more. For example, if we don't meet for a day, such as Sanqiu, Sanqiu doesn't mean three years, but several years.

The three-foot platform also uses an exaggerated technique, that is to say, although the platform is small, it can also do a lot! Now refers to people who have contributed to education (such as teachers).

Extended data:

"Three feet platform, three inches tongue, three inches pen, three thousand peaches and plums; Ten years of trees, ten years of wind, ten years of rain, and a hundred thousand columns. " This sentence shows that the teacher stands on the three-foot platform all day, and with his golden words and a small piece of chalk, he is committed to cultivating a large number of outstanding talents.

The training process of students is like planting trees, waiting for a tree to grow into a big tree after 10 years of careful training and ups and downs. The same is true for students. After years of patient education, they can become the pillars of the country.