Titling this Russel's "10 commandments for teachers" is very misleading. He included these under the title "A Liberal Decalogue" [ * ] in his autobiography and as far as I can tell there's nothing to suggest that he was addressing them to teachers in particular.
He did identify himself as a teacher, saying "The Ten Commandments that, as a teacher, I should wish to promulgate..". So he clearly wants to see those commandments followed by teachers.
* http://www.panarchy.org/russell/decalogue.1951.html