Life expectancy in different countries

(MathPickle, 2011)

Life and death statistics from around the world. It is a good data set to discuss and calculate “average.” If students do not yet know division, the video shows another way to calculate average.

The pathos of the subject matter, is sure to have above average engagement, but be aware of the subject matter and of the personal history of your students before you jump into this activity. It talks openly about death through statistics.

Download printable data-sheets here.

God exists since mathematics is consistent, and the Devil exists since we cannot prove it.

Andre Weil

Standards for Mathematical Practice

MathPickle puzzle and game designs engage a wide spectrum of student abilities while targeting the following Standards for Mathematical Practice:

MP1 Toughen up!

This is problem solving where our students develop grit and resiliency in the face of nasty, thorny problems. It is the most sought after skill for our students.

MP3 Work together!

This is collaborative problem solving in which students discuss their strategies to solve a problem and identify missteps in a failed solution. MathPickle recommends pairing up students for all its puzzles.

MP6 Be precise!

This is where our students learn to communicate using precise terminology. MathPickle encourages students not only to use the precise terms of others, but to invent and rigorously define their own terms.

MP7 Be observant!

One of the things that the human brain does very well is identify pattern. We sometimes do this too well and identify patterns that don't really exist.


Please use MathPickle in your classrooms. If you have improvements to make, please contact us. We'll give you credit 😉

Gordon Hamilton

(MMath, PhD)


Lora Saarnio