×
Ch-ch-ch-changes! Mathalicious is now Citizen Math . Please visit www.CitizenMath.com for the real-world math lessons you know and love. Alternatively, you can continue to access Mathalicious.com until the end of the school year, at which point Mathalicious will ride off into the sunset. For more details about the transition to Citizen Math, please click here.
Ofywczdl73irsumdaq4%3d&expires=1619277138
How has Earth’s temperature changed over time? Scientists say there’s a difference between weather and climate. Even if a given month is cooler than average, the long-term trend shows that Earth has gotten warmer over the past century.

In this lesson, students use positive and negative integers to compare recorded monthly temperatures to their long-term averages and consider actions they can take to take care of the planet.

Students will

  • Operate with decimals and compare values
  • Use positive and negative numbers to describe how values differ from a baseline in a real-world context
  • Plot positive and negative values on a vertical number line

Before you begin

Students should be comfortable placing positive and negative numbers on a number line.

Common Core Standards

Content Standards
Mathematical Practices