Blackboard gives light to aspirants in their lifeBlack board is a major tool to a teacher to enlighten the student or aspirants.
'Guru' means a person who removes darkness in mind. A teacher is considered as Guru as he is enlighten the student or aspirants from their doubt through clarifications.
A Teacher clarifies the doubts of a student whether he is asking directly or not. He, teacher, can identify the students whether he/she is following his instructions / teaching. By sitting in a chair at one corner of the classroom a teacher can identify the student who is not getting his point of teaching.
Even today I remember the teachings of our college lecturers in the subjects Economics, Business Management etc.,
A blackboard is a tool through which a teacher can explain his points by his writing. A lecturer of our college during 1975, Mr.Dayalan, who took Economic and Commercial Geography subject for our B.Com class, just show on the blackboard with his hand where the mexico situates, London situates etc., by assuming the blackboard itself as a world map. When we see the world map in our hand the place where he put his hand on the blackboard exacts the place what he marks. Though the years passed I remember his name and way of teaching means this is the capacity of Guru.