proportion Archives - Mary Kienstra

Giant Pencils

Giant Proportions

By: Mary Kienstra on: January 8, 2015  in: Discussion, Engagement, Math, Uncategorized, ,

A giant stopped by my class and left several of his giant pencils.  As my students observed those pencils, we brainstormed a list of things we could figure out about the giant by knowing the size of his pencil.  They knew that they could use ratios and proportions to estimate the height of the giant, the […] Read more