Meaning of show and tell

show' and tell'

Pronunciation: [key]
  1. an activity for young children, esp. in school, in which each participant produces an object of unusual interest and tells something about it.
  2. any informative presentation or demonstration, as to introduce a new product or divulge and explain a special plan.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.