Esteban took to today's lesson like a fly to honey. We talked about open and closed questions. The difference between "Do you work today?" and "When do you work?". The first has a yes/no response; the second, a detailed response.
He understood that changing the closed question to a negative assumes that you already know the answer: "Don't you work today?" vs. "Do you work today?"
Students will be sending out their emails to their interviewee's next week!