Addition of Integers - Hot Air Balloon

This activity is intended to be used to help students understand addition of positive and negative numbers on a vertical number line (CCSS.MATH.CONTENT.7.NS.A.1) Hot Air Balloon Picture http://www.publicdomainpictures.net/view-image.php?image=58830&picture=hot-air-balloon-clipart Sand Bag Picture: https://pixabay.com/en/bag-flour-sack-sand-161932/

By Adrianne Burns