1.When she cancels root 2 and 2 ( its wrong) but thats what the teacher told.... The teacher didn't say that root is a operator and it has higher precedence than division.
2. The question is find x. Can't the teacher be clear. It would have been " Find the Value of x"?.
3.In the Limit sum, the teacher must take effort in explaining the concept of infinity( which was a problem when i was in 11th) but my sir made me clear.
The teacher must teach the children in a innovative and a clear way with a day-to-day example. then the child will be able to understand what is thought. Moreover no teacher will appreciate the sense of humor of the child when he does something like this..
I am happy, my school teachers took great efforts to make me(us) understand the concepts and made me to be where i am today. Thanks to them.
Happy Teachers day....