Interactivate

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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.
Analyzing graphs and creating velocity graphs from distance and acceleration from velocity.
Possible or Not (Activity)
Review the properties of functions by looking at ten different curves and deciding whether or not they meet the criteria for a graph of a function. This activity simply displays the curves - it does not quiz the user.
Impossible Graphs (Discussion)
Shows what makes a graph represent impossible situations and how to avoid these problems.
This worksheet is for use with the Pythagorean Explorer activity (http://www.shodor.org/interactivate/activities/PythagoreanExplorer/).
This worksheet is for use with the lesson Derivate (http://www.shodor.org/interactivate/lessons/Derivate/).
Reading Graphs (Lesson)
Demonstrates the connections between formulas, graphs and words.
Students will graph input/output pairs from a simple linear function in order to gain an understanding of basic linear functions.
Fraction Four (Activity)
Students play a generalized version of connect four, gaining the chance to place a piece after simplifying fractions, converting fractions to decimals and percentages, and answering algebra questions involving fractions. Choose difficulty level, question types, and time. Fraction Four is one of the Interactivate assessment games.
Recursion (Activity)
Graph recursive functions by defining f(0)=C and defining f(n) based on f(n-1).
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