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Compare two sets of objects, using estimation to determine which is greater. Estimate a number of objects, the length of a line, or the area of a shape. Parameter: error tolerance. Comparison Estimator is one of the Interactivate assessment explorers.
Number Cruncher (Activity)
Similar to the original "Function Machine" but lists input and output in a table and will not let the user attempt to guess the rule without having at least two data points. Number Cruncher is one of the Interactivate assessment explorers.
This worksheet is for use with the Coloring Remainders in Pascal's Triangle activity (http://www.shodor.org/interactivate/activities/ColoringRemainder/).
This worksheet is for use with the Number Base Clocks activity (http://www.shodor.org/interactivate/activities/NumberBaseClocks/).
This worksheet is for use with the Tessellate! activity (http://www.shodor.org/interactivate/activities/Tessellate/).
Discusses methods of converting from the base ten system to another base number system.
This worksheet is for use with the Histograms and Bar Graphs lesson plan (http://www.shodor.org/interactivate/lessons/HistogramsBarGraph/).
This worksheet is for use with the Estimator Four activity (http://www.shodor.org/interactivate/activities/EstimatorFour/).
This worksheet is for use with the Floor Tiles activity (http://www.shodor.org/interactivate/activities/FloorTiles/).
Optical Illusions (Discussion)
Looks at several optical illusions.
a resource from CSERD, a pathway portal of NSDL NSDL CSERD