Broken Calculator: Simplifying Fractions

Polar Weather Report

The North Pole hits -40°. The South Pole hits -60°. Calculate the averages, graph the data, and deliver your polar weather report.

Racetrack – Race Around A Graph

How fast do you get your mathematical car going without crashing?

Disneyland Parking Structure Math Project

Your students will use estimation strategies to figure out how many parking spots are there in the parking structure at Disneyland? And you bet I reveal the real answer!

Rounding Numbers (But Not To 10)

What could we possibly do to make rounding more interesting for students who already get it? In this series, students consider how they might round to values other than “the nearest 10.” How, for example, do we round to the nearest 9? 7? 15?

Percents and Credit Cards

Let’s buy something expensive with a credit card and then make only the minumum payments!