Regurgitation of the text on the blackboard does indeed strike me as
poor teaching. I do not "lecture" from the textbook. However, I often
get the student complaint: "Why should I buy the textbook when he never
lectures from it? The only thing the textbook is good for is finding
the assigned problems."
Therefore, realize that some students expect regurgitation of the text,
and get angry when the prof doesn't do that.
I tell students my lecture is different than the text so they are
getting the material twice. Once from me, in my words, with emphasis on
what I think is important, and with some warning about pitfalls, etc...
and once from an established author who is giving a different
perspective, as well as worked-out examples, study guides, chapter
reviews, etc.
I advise students to read the text before class. Come to class. Then
read the book again. I sure wish they would do that.
Michael D. Edmiston, Ph.D.
Professor of Physics and Chemistry
Bluffton College
Bluffton, OH 45817
(419)-358-3270
edmiston@bluffton.edu