Student Handouts
What Year Is It?
This page includes a space to write in the date, but what does the date even mean? And where does it come from? Inform your class about the various calendars and how the Western calendar came into widespread use with an informational...
Curated OER
Time and Timetables
In this recognizing time and timetables worksheet, learners compare Julian and Gregorian calendars, determine leap years, and apply the formula for finding the day of week and Easter day for any year. Students solve 20 problems.
Curated OER
New Year Celebrations
Students study the universality of many New Year celebrations. They present traditions associated with New Year celebrations and explain why New Year is at different times for different people.
Institute for Dynamic Educational Advancement
Web Exhibits: Calendars Through the Ages: Announcing the Sky
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.
Rice University
Galileo Project: Christopher Clavius
This site from The Galileo Project of the Rice University provides a biography of Clavius including an excerpt from his writings. A picture is provided in this article along with links to additional information.
Scholastic
Scholastic Internet Field Trip: Calendars & Time Measure
Study the math and history involved in the development of the 12 month calendar. There are lots of links to informative time and calendar websites to assist you.
Other
Western Washington University: Leap Year
It takes the entire page but by the end of it, you will understand the whys and whens of Leap Year Day.
Khan Academy
Khan Academy: Common Questions About Dates
Our calendar is called the Gregorian calendar and was instituted by Pope Gregory XIII in 1582. There are many other calendars. Learn about these calendars and the meanings of B.C.E and C.E.
NumberNut
Number Nut: Calendar Origins
History and mathematics merge in this lesson that explores the origin of the calendar. Learn how it all got started in this detailed lesson that includes a simple months of the year game and a more challenging time conversion game. Both...
Institute for Dynamic Educational Advancement
Web Exhibit: The Islamic Calendar
This website gives very detailed information about all aspects of the Islamic calendar.
Institute for Dynamic Educational Advancement
Our Year
The concept of a year in time and the various kinds of year used in human timekeeping are discussed.
Institute for Dynamic Educational Advancement
Web Exhibit: The Christian (Julian) Calendar
This website gives very detailed information about all aspects of the Christian (Julian) calendar.
Institute for Dynamic Educational Advancement
Web Exhibit: The Indian Calendar
This website gives very detailed information about all aspects of the Indian calendar.
Other
Timekeepers.org: Calendar History
Scroll down this page to see the various topics addressed on this website. Learn a "brief history of the Western Calendar" as well as information about the ancient calendars of the world, including the Sumerian, Egyptian, and Greek...