Talktothe single teacher raising two kids who was told by her principal in the last week of school that because of the Recovery Act, she wouldn't be laid off after all.
Mr Gates pretended to release a few malarious mosquitoes into the conference hall, but the main part of his talk was to ask what qualities it takes to make a teacher great, and to bemoan the fact that so little scientific research has been carried out into this vital and rather obvious question.