From the website. This is a FREE app.
"Designed for lesson study, LessonNote lets you trak who is talking to whom, when, and for how long, and lets you jot handwritten notes about what is being said and what students are doing. iPad 2 users can also record photos of student work (iPad 1 users can import photos afterwards).
"Record observations by tapping anything on the classroom. Drag from one entity to another to record interactions.
When you review your notes, the classroom highlights whom a note was about, while a timeline provides a bird's-eye view of the lesson, showing when events occurred and how long they lasted."
Via Ana Cristina Pratas, Jim Lerman