The authors recommend that the mentor not be a parent, even if the parent is qualified. For reasons of cost and convenience I am mentoring my kids.
Do they explain why they see it as being a problem?
They do, briefly. Quoting p123 of the 1st edition,
http://books.google.com/books?id=L5...AEwAA#v=onepage&q=parent&f=false "We do not recommend that parents mentor their children, even if they have the appropriate background in mathematics. Parents may demand too much of their own child or may be unable to get enough cooperation from their child. They may be too ego-involved in the mentoring situation, or they simply may not have credibility with the school."
