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"n the Tournament Spelling Bee, you'll be challenged by a series of words, with the spelling difficulty adapted to your skill level. The more words you get right, the higher your score will go, on a scale from 200 to 800. You can compete against other spellers, since we keep track of high scores (with streaks of correct answers serving as tiebreakers). "

Wow, grab some text (intro to a unit or new area of study) paste it in and it creates a wordle, but also lets you see how text is linked, see a thesaurus and more. Very cool.