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Institute for Dynamic Educational Advancement

Web Exhibit: The Christian (Julian) Calendar

For Students 9th - 10th
This website gives very detailed information about all aspects of the Christian (Julian) calendar.
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Institute for Dynamic Educational Advancement

Web Exhibits: Calendars Through the Ages: Announcing the Sky

For Students 9th - 10th
Well-organized website depicts the "Fascinating history of the human endeavor to organize our lives in accordance with the sun and stars." Gives an overview and specifics of the basis of calendars through the ages.
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National Geographic

National Geographic: 45 Bce: Julius Caesar Takes a Leap

For Students 9th - 10th
Why do we have an extra day at the end of February every four years? We have Julius Caesar to thank! Read this short explanation about how the calendar kept falling out of step with the seasons and Caesar's solution to the problem.
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Authors Calendar

Author's Calendar: Gore Vidal

For Students 9th - 10th
This site, from a public library in Finland, provides information on Gore Vidal's life, a list of works by and about him, and other interesting information.
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National Council of Teachers of Mathematics

The Math Forum: Seventh Grade Mathematics: Cycles

For Students 6th - 8th
Teachers can use this resource for creating interesting lessons about time and time measurement. There are articles about leap year, converting time, as well as other links for further research. An interdisciplinary project about an...

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