Endless Alphabet helps anyone learn how to spell words by matching letters, learn how to pronounce words as the game makes the sounds for each letter and lastly learn the definition of words as the game reads them to you when you complete a word.
I've seen kids do far better when they are encouraged to iterate (modify, test, modify, test, ...). This also teaches scientific thinking (hypothesize, test, repeat) in a way, but this method of programming is not really encouraged in the game and so a guiding parent might even be essential.