This might be off the wall, but from what I read of your description, your supervisor wants you to display more empathy with your students. Kind of a "don't just stand at the podium" thing. Get out and about with the class and engage them. Remember that these are people have stepped away from school life for whatever reason and are now coming back to it. They now have experiences that high schoolers do not have, and it is a great opportunity to show them how your particular subject can help them further down the road. Have then use real life examples where math skill would have helped them out.