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Students investigate linear functions with positive slopes by trying to guess the slope and intercept from inputs and outputs. Positive Linear Function Machine is one of the Interactivate assessment explorers.

Give input to the Whole Number Cruncher and try to guess what it did from the output it generates. This activity only generates multiplication and addition functions to avoid outputting any negative numbers. Whole Number Cruncher is one of the Interactivate assessment explorers.

This worksheet is for use with the Patterns in Pascal's Triangle lesson plan (http://www.shodor.org/interactivate/lessons/PatternsInPascal/).

This worksheet is for use with the Data Flyer activity (http://www.shodor.org/interactivate/activities/DataFlyer/).

Step through the tortoise and hare race, based on Zeno's paradox, to learn about the multiplication of fractions and about convergence of an infinite sequence of numbers.