Why December Has The Longest Days

What will you do with an extra 30 seconds? Scholars learn that December 22nd is 24 hours and 30 seconds long, which classifies it as the longest day of the year. An engaging video lesson analyzes Earth's orbit in combination with its rotation to explain this variation in day length.

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Instructional Ideas

  • After viewing the video, have pupils write a summary of why December 22nd is the longest day of the year
  • Post the video for pupils to watch multiple times to fully grasp the information
Classroom Considerations

  • To watch the video independently, learners need Internet access
Pros

  • An interesting approach to studying Earth's orbit and rotation
  • Sketches add important information to the concepts
Cons

  • None