What happens in the classroom?

What happens in the classroom is difficult to handle.

As a teacher, you have to know it all.
Not just what you are teaching. But also what is happening.

You have to know every word on the slides.
Every word in the worksheets.

You have to know every student.
Who is good, who is bad, who catches things fast, who needs more explanations.
Who is sleepy, who is restless. Who gets distracted, who distracts.
Who likes to daydream, who likes to loiter.

You must have a plan; a plan that details the processes in class.
You must work according to plan, a timing given is a timing to be followed.
You must be flexible. Timings must be changed according to the events that occur.

You must answer, you must also question.
You must repeat, but you must not bore.
You must model. At the same time, inspire individuality.

You must prescribe, but they must be self-directed learners.

Teaching is an art, and a science.
To teach, you must know everything.

I don't.