Math with Bad DrawingsCartoon Archive

Flip Fraction

June 27, 2017

A teacher's view of a common question: forgetting which fraction to flip when dividing sounds as dangerous as forgetting where a fork goes.

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Free for classrooms, worksheets, slides and other non-commercial use under CC BY-NC 4.0, with credit to Ben Orlin.

Cartoon by Ben Orlin, Math with Bad Drawings. https://cartoons.mathwithbaddrawings.com/2017-06-27-flip-fraction/ (CC BY-NC 4.0)
Transcript

[What They Say] "I forget: to divide, do you flip the second fraction or the first one?" (2/3 ÷ 9/10)

[What I Hear] "I forget: to eat, do you put the fork in the salad or the wall socket?"

Topics
Number & Arithmetic › FractionsNumber & Arithmetic › Dividing FractionsNumber & Arithmetic › ReciprocalsMath Culture › Teaching
Level
ElementaryMiddle School
Themes
Teachers & ClassroomCommon MistakesFoodFor Teachers (Classroom Satire)