Most students in the small arctic community of Kaktovic, Alaska grow up speaking Iñupiaq. They found doing math using Arabic numerals (1, 2, 3,4, 11, 12, etc) difficult because they didn’t match with their Inupiaq words for numbers. In this thinking task, students will explore arithmetic operations written with Kaktovic numerals to try and figure out how their numeral system works.
Spoiler: it is not a base 10 system!