Unit 2, Lesson 4# Efficiently Adding Integers and Other Rational Numbers

EngageNY 45 min(s)

Students understand the rules for adding rational numbers: Add rational numbers with the same sign by adding the absolute values and using the common sign. Students justify the rules using arrows and a number line or by using the Integer Game. They extend their findings to begin to include sums of rational numbers. Students review concepts from Lessons 1 through 3 by playing the Kagan Strategy Game, "Hands Up, Pair Up!