I have teared up too, but in frustration. It is embarrassing, but having been in the other seat too (a teacher where a parent has cried, and the student has cried)it happens more times than you would probably imagine. Parents are emotionally invested in their kids, as we all should be, so when things are either going badly or are suddenly going really well it is often times hard to contain the pent up emotions that automatically come with a PTC.
I would say let go of the embarrassment and delight in the fact that the teacher finally gets it. Congratulations!
