What could possibly be construed as "strange" to a layman that would be a normal occurrence? Please enlighten me.
A classroom during the day is like a community . Teaching is not the only thing that goes on . Teachers are parents,lawyers,nurses,doctors and prison guards at various times during the day . Many things that happen are truely private . Things happen that can be the result of many weeks or months in the making . A person, even an administrator might take the happenings in a negative way without prior knowledge of what led up to the action . Many students also do not want their words taped without prior knowledge . In our district, there are specific guidelines for the taping of a class by a student or parent and the teacher does have the last say in these issues .
My main concern is that you should review all appplicable rules before mentioning to third parties that you privately taped the class. Remember, people have been fined for taping phone calls over the air and relaying information to the Democratic operatives in Florida.
The government also needs a permit to wiretap .
I personally think this teacher has some serious issues , primarily an insecurity complex .
I also think that the administration in this building is lacking in professionally handling your request for disallowing a textbook to be used as a primary source of information that is not approved by the district .