"Catch Me If You Can" is a movie about "A true story about NAME_1 NAME_2. who, before his 19th birthday, successfully conned millions of dollars worth of checks as a Pan Am pilot, doctor, and legal prosecutor. An FBI agent makes it his mission to put him behind bars. But NAME_3 not only eludes capture, he revels in the pursuit."
When 00:20:01 - 00:20:03, people M: "Now, somebody please tell me where you left off in your textbooks."
 When 00:20:06 - 00:20:09, people O: "Excuse me, people, if I need to ask again, I'm gonna write up the entire class."
 When 00:20:09 - 00:20:10, people P: "Take your seats!"
 When 00:20:16 - 00:20:16, people G: "Chapter seven."
 When 00:20:16 - 00:20:21, people L: "Will you please open your textbooks to chapter eight and we'll get started?"
Based on the above plotline and subtitles of the movie, use a brief sentence of no more than 50 words to deduce the visual elements and context of that scene.