| Activity |
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Description |
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Grades |
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Topics |
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Software |
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Billiard paths |
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Here you will find an unusual billiard table. The dimensions are determined by the numbers on the sliders. Your Challenge: See if you can come up with a way to predict (1) what the number of touches will be for any given size billiard table and (2) which corner the ball will end up in. |
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6 |
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Number Sense, Numerical operations |
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Applet,
MW* |
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 |
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Broken Calculator |
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In this game you have to get as close as possible to a given number, by using the still working buttons of a broken calculator. Challenge: make your computation come out to 25 if the 5 key is disabled. |
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6, 7 |
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Number Sense, Numerical operations |
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Applet,
MW* |
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 |
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Bus Problem |
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You are about to go on a field trip with the entire school. There are 438 teachers, students, and administrators in your building. Everyone will be traveling by school bus. If each bus (excluding the bus driver) can seat a maximum of 30 people, how many buses will you need to transport everyone? |
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6 |
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Number Sense, Numerical operations |
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None |
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 |
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Factor Game – Microworld Version |
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Two players compete for high score by picking numbers from a board (screen) which are then added to their score. There is a catch though. Whenever Player A picks a number, the total of every factor of that number still showing on the screen is added to the opponent's score. When the opponent, Player B, chooses a number, that number is added to his/her score, but Player A gets the total of all remaining factors of the number B chose. Game continues until all numbers have been picked. High score wins. |
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6 |
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Number Sense, Numerical operations |
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MW* |
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 |
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Game of Number Guess – Decimal version |
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The assumption of this number guess game is that the mystery number will be a whole number. But what if 4 is too big and 3 is too small? What would be your next guess? |
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6 |
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Number Sense, Numerical operations |
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MW |
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 |
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Hundred Board |
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NCTM version. Very clever way to do times tables! |
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6 |
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Number Sense, Numerical operations |
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 |
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Road Sign |
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What’s wrong with the sign? |
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6 |
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Number Sense, Numerical operations |
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None |
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