How many birthdays do leap year babies have in a lifetime? Learners explore the question among others in a lesson focused on different calendar systems. Given explanations of the Julian, Gregorian, and Martian calendars, individuals use mathematics to describe patterns and make conclusions. 

Concepts

calendar skills, leap year, calendar math

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Additional Tags

math

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Instructional Ideas

• Assign different calendar to different groups and have them present their findings to the class
• Bring calendars for pupils to use as a reference

Classroom Considerations

• Expects individuals to be familiar with patterns of the calendar

Pros

• Allows for many different solutions methods
• Includes an answer key with detailed solutions and explanations

Cons

• None