Gonna be a Leap Year

By George C. Baxley

By George C. Baxley

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This year we will add the 29th of February to our year?  Why do we do that?  How can you tell?  What if we didn't add a day every 4 years?

Students work with a flow chart to deduce what years are going to be leap years.  They learn about the exact measurement of a solar year and how our Gregorian calendar needs to be adjusted to accurately align the calendar with the Earth's revolutions around the Sun.

The activity: Leap-year2020.pdf

CCSS: 5.NBT, 6.NS, 7.NS, N-Q.3

For members we have an editable Word docx and solutions.

Leap-year2020.docx    Leap-year-solutions2020.pdf

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