Herd a Word is a fun spelling site that would be great to use on your SmartBoard! The goal of the game is to form words by connecting the lettered balls. It's a simple premise- the more letters you use, the more points you earn. To form a word, you choose a letter, then drag (or click) your finger across to connect additional letters to the word.
There are two different modes of the game- Herd and Line.
In the Herd Mode balls are unconstrained within the game field so more letters are reachable. In the Line Mode balls are constrained to their column. There are less possibilities but more order!
To test it out, you can view of demo of the game here.