WordWorld's Build a Word
What it is: a spelling app, spun off from the TV programming "PBS KIDS," that enables kids to put together letters to create words
How it works: As letters float across the screen, the child touches and drags them into an on-screen outline, placing one letter next to the other. When a word is formed, the child "squeezes" the letters together and, voila: they magically change into an image of the word. Spell "cow," for example, and the letters change into a cartoon cow, or a cow "WordFriend."
Why we like it: Build A Word teaches children how to spell words in a highly entertaining, graphic way.