Challenge Math For the Elementary and Middle School Student (Second Edition) by Edward Zaccaro |
by Edward Zaccaro
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by Edward Zaccaro
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25 Real Life Math Investigations That Will Astound Teachers and Students by Edward Zaccaro |
by Mary F. Washington
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a)Sister Elizabeth Kenny discovered an effective treatment for polio, but it was ignored by the medical establishment for 30 years.
b)Engineers tried to stop the Challenger launch because of concerns that the o-rings might fail in the cold temperatures. They were ignored.
c)Dr. Semmelweis discovered why thousands of women who gave birth at hospitals were dying and a simple way to stop the deaths. His colleagues ignored his discovery and thousands of women continued to die.
d)How a simple design mistake led to 114 deaths when a walkway collapsed at the Kansas City Regency Hotel.
Questions are included at the end of each chapter to test the readers understanding of each concept.
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