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In this activity, learners play a game similar to Hangman by guessing a secret phrase to understand how computer scientists measure the amount of "information" in a document.

In this activity, learners find the answer to the question, "if you have a pile of 8 cards, and you remove half, then half again, how many times can you do this until you get to just one card?" This w

In this game, learners experience how computers divide a big problem into many smaller ones and how they use binary "yes"/"no" questions.

This game asks you a series of questions about how much time you spend in front of a screen, not being active.

In this activity, learners examine nanoscale structures of common things.

In this online version of the classic paper and pencil game, learners practice looking ahead to anticipate an opponent's move.

In this interactive game, learners compare their music-listening skills with that of a three-month-old baby.

In this online Flash game and spacewalk mission simulation, learners are challenged to repair parts of a space station while balancing their oxygen and fuel use carefully.

In this number puzzle/trick, learner #1 thinks of a number between 1 and 63. Learner #2 shows learner #1 six cards and asks them whether the cards contain their number.

In this interactive game, learners will test their memory of animal and insect sounds. Flip over cards, listen to the sound, and try to find the ones that match.

This online game tests reaction time. The learner controls a computer-generated frog, and must press a button as soon as a fly appears on the game's radar screen or can be heard from the speaker.