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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.

Vocabulary
  • divisible
  • synchronize
  • shift (noun)
  • correction
  • off track
  • reform (verb)
  • astronomer
  • century
  • adoption
  • advise
PDF Content
  • warm-up
  • reading
  • vocabulary review
  • comprehension questions
  • discussion questions
  • research
Task Content
  • Warm-Up(Reference)
  • Vocabulary Preview A(Matching)
  • Vocabulary Preview B(Matching)
  • Read & Listen(Reference)
  • Comprehension(Open-Ended Questions)
  • Vocabulary Review A(Open-Ended Questions)
  • Vocabulary Review B(Type in the Blanks)
  • Listen & Type(Type in the Blanks)