Quiz: What time is it?

My son can't read a clock! He can't possibly have a sense of time, like 1:00 in the morning, or 7:00 at noon! I created this app out of frustration. Infinite Clock Problems, easily printable via AirPrint. The layout is perfect for A4 paper, so you can paste it in your notebook or use it as independent study. For easy grading by parents and teachers, the QR code at the bottom of the printed material can be scanned for easy answer matching.