Gregorian Calendar Study Guide

Key Concepts

• History: The transition from the Julian to the Gregorian calendar
• Leap Years: Rules for determining leap years in the Gregorian calendar
• Months: Names and lengths of each month in the Gregorian calendar
• Weeks and Days: The structure of weeks and days in the Gregorian calendar

Practice Questions

1. What was the primary reason for the introduction of the Gregorian calendar?
2. Identify the leap years in the interval from 2000 to 2020.
3. How many days are there in February in a leap year?
4. List the months that have 31 days.
5. Explain the significance of the adjustment made to the leap year rule in the Gregorian calendar.

Activities

1. Create a calendar for a leap year, highlighting the extra day in February.

2. Research and share the historical context of the transition to the Gregorian calendar.

3. Discuss the importance of having a standard calendar system for global communication and organization of time.