Interactivate

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Multi-Step Functions (Discussion)
Discusses the notion of composite functions as several "number machines" with the output of one machine becoming the input of another.
A supporting worksheet for Interactivate
This worksheet is for use with the Whole Number Cruncher activity (http://www.shodor.org/interactivate/activities/WholeNumberCruncher/).
This worksheet is for use with the Simple Plot activity (http://www.shodor.org/interactivate/activities/SimplePlot/).
This worksheet is for use with the lesson Solving Equations (http://www.shodor.org/interactivate/lessons/SolvingEquations/).
This worksheet is for use with the Derivate activity (http://www.shodor.org/interactivate/activities/Derivate/).
This worksheet is for use with the Derivate activity (http://www.shodor.org/interactivate/activities/Derivate/).
Students investigate linear functions by trying to guess the slope and intercept from inputs and outputs. Linear Function Machine is one of the Interactivate assessment explorers.
Reading Graphs (Lesson)
Demonstrates the connections between formulas, graphs and words.
A supporting worksheet for Interactivate
a resource from CSERD, a pathway portal of NSDL NSDL CSERD