See also The Illiteracy Of Play | Pecha Kucha Night Christchurch.
School Scrabble is a big thing in the USA.
You can buy specially designed starter kits to start your school clubs:
The kit contains 6 boards, 6 sets of tiles, 6 tile bags, 12 racks and as a bonus The Official SCRABBLE Players Dictionary, Fourth Edition.
Great idea, superbly presented.