TOEFL iBT- Do you have students studying for this test?

[kttokyo77]

Hi all,

I am doing a study on TOEFL iBT.
I wanted to know if anyone is teaching TOEFL preparation .

Briefly answering any of these questions would be appreciated.
How do you help your students prepare for the test?

What sections were easy or hard for your students?

Do you think that the test is a valid test of English proficiency?

Thanks
KT