[RightWhale]

a diarama

I have no idea what this is.

[johnmartineu]

a diarama is a display I put on a large board of pictures and papers about my topic. You know! The kind they have at science fairs!?

[EggsAckley]

A diarama is a three-dimentional display with events depicted chronologically. It's something more often used in grade school and maybe junior high. If he's doing them in high school, odds are he's in one of those "special" classes.