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Clock Arithmetic (Activity)
Work with various types of clocks in order to learn about modular arithmetic operations. Parameters: Number of hours on the clock.
This worksheet is for use with the Fractal Dimensions activity (http://www.shodor.org/interactivate/activities/FractalDimensions/).
This worksheet is for use with the lesson Algorithm Discovery with Venn Diagrams (http://www.shodor.org/interactivate/lessons/AlgorithmDiscovery/).
This worksheet is for use with the Estimator Four activity (http://www.shodor.org/interactivate/activities/EstimatorFour/).
This worksheet is for use with the Flake Maker activity (http://www.shodor.org/interactivate/activities/FlakeMaker/).
Estimator Quiz (Activity)
Test your estimation skills by answering questions. This quiz asks you to estimate the answer to addition, multiplication, and percentage questions. Choose difficulty level, question types, and time. Estimator Quiz is one of the Interactivate assessment quizzes.
Estimation (Lesson)
Students practice and improve upon their estimation skills.
Sort colored shapes into a three circle Venn Diagram.
Introduces students to the idea of finding number patterns in the generation of several different types of fractals.
Spy Game (Lesson)
Students will learn about modular arithmetic in order to decipher encrypted messages.
a resource from CSERD, a pathway portal of NSDL NSDL CSERD