show and tell
Also found in: Idioms, Encyclopedia, Wikipedia.
show-and-tellor show and tell (shō′ən-tĕl′)
1. An educational activity in which a child displays an object to the class and talks about it.
2. A public presentation or display.
show′ and tell′
1. a classroom activity for young children in which each child produces an object and talks about it.
2. any informative presentation or demonstration.