About Our Curriculum
Forms & Printable
Science & Math
Art & Literature
GIS & Mapping
HomeSchool Web Quest #6 - Leap
Sunday is Leap Year's extra day this year. It is a special and unusual day that happens
only once every 4 years.
To find out about this day go to
the Leap Year study unit here to help answer the following questions.
Record your answers here:
When did the practice of adding a day to the calendar begin?
Because everyone in
the world had different time measuring tools, there were problems. What were the 4 problems listed?
To temporarily solve this how many days were added to the Julian Calendar in 46 BC?
What did the astronomer Sosigenes calculate
the length of a year to be?
What did Sosigenes use to find these calculations?
What was his solution?
Why was the day added to February?
This was not a permanent solution. Christopher
Clavius recalculated the data. What did he do with his results and a solution?
Who was the Pope and what did he do?
What was Clavius’ solution?
What do we call the year 2000?
How long do we estimate a year to be? a day?