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93 leap year

Leap Year

In this lesson, students learn the reason for leap years and how to calculate when the next one will be. They also learn some history about calendars. Includes research questions about leap seconds and the Birthday Paradox.

Printable Lesson

PDFs:

  • 1–1.5 hours
  • 6 pages
Tasks
  • warm-up
  • reading
  • vocabulary review
  • comprehension questions
  • discussion questions
  • research
Vocabulary
  • divisible
  • synchronize
  • shift (noun)
  • correction
  • off track
  • reform (verb)
  • astronomer
  • century
  • adoption
  • advise