Pupils show the ratio of pi by revolving a circle one complete time. The see why the ratio is true. They, in groups, engage in an experiment, which illustrates the properties of Pi.
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Discovering the Formulas for Circumference and Area of a Circle
Find formulas using direct measurements and reconstruction. Groups use diagrams of circles and measure their circumferences. With several examples, classmates determine the constant of variation, pi. Pupils continue exploring circle...
9th - 12th Math CCSS: Designed
Addition and Subtraction Formulas 1
Show budding mathematicans how to find the sine of pi over 12. The third lesson in a series of 16 introduces the addition and subtraction formulas for trigonometric functions. Class members derive the formulas using the distance formula...
11th - 12th Math CCSS: Designed