Meaning of flannelboard

flan•nel•board

Pronunciation: (flan'l-bôrd", -bōrd"), [key]
— n.
  1. a flannel-covered surface to which other flannel pieces, as letters of the alphabet, numbers, etc., adhere merely by contact, used mainly in schools as a visual aid.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.