Welcome Guest
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An accidental discovery with some neat links
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View the graph over time. What happens when you change some of the parameters?
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Find questions near bottom of page
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Try the different options below the puzzle (e.g., fractions)
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Do 2 trees for a more interesting visit
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Target is the big number in upper left
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From New Zealand
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See if you can explain it to Mr. Clein!
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Read the directions!
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Read the construction challenge.
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Haven't quite figured out how it totally works
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For copying for Scratch!
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Choose 2 digit divisors
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From MathFrog 6
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From MathFrog 6
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From MathFrog 6
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From MathFrog 6
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From MathFrog 6
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From MathFrog 5
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From MathFrog 5
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Rewrite the fractions, then add
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Can be very challenging!
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Click through about 4 pages to find the practice
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Win $1,000,000!
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Pick your quiz level
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Zap the spaceships!
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A little drier than the other options
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Free for use for school projects. Remember to cite!
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More academic; less cartoonish.
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From the Central Intelligence Agency.
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