Positive and Negative Numbers

Students use their understanding and fluency with positive numbers and extend their thinking to negative numbers. In the contexts of temperature and elevation, zero represents a physical situation (freezing point of water, sea level) and numbers less than zero describe a physical state in the real world. Students abstract temperatures and elevations to positive and negative numbers on a number line (MP2).

Grade 6, Episode 18: Unit 7, Lesson 1 | Illustrative Math