Dec. 17 Cover Image

Dec. 17 Math Mystery Year Puzzle: Aztec Calendar Stone Is Rediscovered

On December 17 of the Mystery Year, the Aztec Calendar Stone was rediscovered. Clues for finding the year involve circumference and area of a circle, volume of a cylinder, and measurement conversions in a real-world context. This interesting puzzle is perfect for middle school or high school students to use any time.

Your PDF download includes:

1-page printable student puzzle
2-page digital version with horizontal layout and larger print
4 pages of Teacher Notes including step-by-step solutions, historical notes, and more
1-page How to Use History-Mystery Puzzles