How to say it in English compared with traditional teaching?

Relative to traditional teaching, we say this in English: relative to traditional teaching.

Commonly used English sentences are as follows:

1, personally, online courses cannot replace traditional courses. In my opinion, online courses cannot replace traditional courses, because traditional courses have advantages that online courses cannot replace.

On the one hand, the biggest advantage of traditional courses is that it provides every student with an opportunity to communicate face to face with teachers, but online courses can't achieve this effect. ?

On the other hand, traditional courses are more considerate than online courses, because students in traditional courses have similar understanding or knowledge of the same object, while online courses are difficult to deal with people with different needs, goals and levels.