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TitleHeight of the cactus
Brief descriptionThe classic "how tall is the ___" based on shadow length similar triangle problem. In PowerPoint form, each slide adding one stage of the abstraction
PurposeContextual application
Topic(s)Proportional geometry
Type of activityInstructor led
Where work is doneIn class
Time required0 to 10 minutes
Technology neededNone needed (i.e. technology optional)
Suggestions for implementationShow first slide with the question "how tall is the cactus?" Ask what info would be helpful. Show next slide with my height. Then following slide with shadow lengths. Can show next slides which show the triangle abstraction.
Task developer(s)David Lippman
CollegePierce College
LicenseOpen (CC-BY)
Files:Powerpoint slides Preview
PostedDecember 19, 2012, 12:41 pm by David Lippman
Last UpdatedDecember 19, 2012, 12:41 pm