[ZWG] AMPLIFY 6.7.02: Positive and Negative Numbers

Students extend their understanding of numbers to now include negative numbers by exploring elevation. In this context, they associate every value with a physical state in the real world. Zero represents sea level, numbers greater than zero are higher than sea level, and numbers less than zero are lower than sea level. Students then abstract elevations to positive and negative numbers on a vertical number line (MP2), which is used to compare the relative location of each elevation (MP7).

By Zach Wissner-Gross