Back in the classroom - week 1 - C’est la Z

As you might have heard, I'm back at Stuyvesant teaching. Not permanent or full time - just covering for a CS teacher who's on grand jury duty. She's out for three week but since I was at SIGCSETS for the first one, I'm only covering for two. Last week and the one upcoming. I wouldn't be covering all 5 of the teacher's classes, just 3 - periods 6, 7, and 8, the second half of Stuy's intro CS class.