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Sets (Discussion)
Gives an introduction to sets and elements.
This worksheet is for use with the activity Triple Venn Diagram Shape Sorter (http://shodor.org/interactivate/activities/TripleVennDiagram/).
Identity Properties (Discussion)
Introduces the concepts of the additive identity and multiplicative identity and how they are used when solving equations.
Introduces students to modular (clock) arithmetic and how modular arithmetic can be used to encode messages using simple shift, multiple and affine ciphers.
This worksheet is for use with the Sierpinski's Triangle activity (http://www.shodor.org/interactivate/activities/SierpinskiTriangle/).
Caesar Cipher III (Activity)
Decode encrypted messages to determine the form for an affine cipher, and practice your reasoning and arithmetic skills. Input your guesses for the multiplier and constant. Caesar Cipher III is one of the Interactivate assessment explorers.
This worksheet is for use with the Patterns in Fractals lesson plan (http://www.shodor.org/interactivate/lessons/PatternsInFractals/).
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.
This worksheet is for use with the Another Hilbert Curve Generator Activity (http://www.shodor.org/interactivate/activities/AnotherHilbertCurve/).
This worksheet is for use with the Practicing Arithmetic lesson plan (http://www.shodor.org/interactivate/lessons/PracticingArithmetic/).
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