This averages mystery requires students to understand how to calculate the three averages (mean, median and mode) and the range from a list of numbers. Students need to work through a set of clues to determine who bit Sam, the vet’s assistant.

You could make this task easier by suggesting a starting point as clues are currently in random order.

[Click image below to download the mystery for your students.]

Kind regards,

Debbie Barton

Debbie Barton is a teacher, examiner and maths consultant with over 20 years’ experience. She’s written a number of books including Complete Mathematics for Cambridge Secondary 1. She also worked as a Gifted and Talented trainer and is passionate about ensuring able students are challenged with exciting mathematical stimulus.