Following is brief introduction of the teacher
Mathematics - F.A./F.Sc.
Physics - O Level
Physics - F.A./F.Sc.
Chemistry - F.A./F.Sc.
English - F.A./F.Sc.
C/C++ - ICS
No doubt video lectures are a better way to teach. Soon you will find here video lectures by this teacher for better understanding.
Online teaching is an alternative to face to face teaching. No doubt if someone is away he/she can get benefit of being taught by a qualified and experienced teacher. Hopefully this teacher will soon be available for online teaching.