Let me repeat here a quote from this question:
Für diese richtige Antwort auf die Frage gönnt Ihnen Ihr Lehrer ein kurzes Nicken. Sie nehmen die Auszeichnung bescheiden entgegen und die nächste Aufgabe in Angriff. Nicht schlecht für den Anfang.
There, I commented –apparently erroneously– that Lehrer couldn't be a female. I do agree that in many sort of texts, say in a contract (der Lehrer soll blah blah), you could find Lehrer, which as noun is always masculine, as standing for teachers of both genera. Also the reference given to me in the comments points out at a different kind of noun: an adjectivized noun which moreover has jeder before it.
In the previous quote, it is another case, though. First, it is singular, and secondly the text appears to exhibit a narrative character, so if the teacher would be female, the author would likely denoted it as such. So, I know I'm most likely wrong in my comment "The teacher is not a woman", but I'd like to know why.
- Can somebody explain to me why Lehrer could stand for a female teacher?
Edit. If somebody is still curious about what the author of that book intended by Lehrer the word has been replaced in another edition by Dozent.