This lab guides students through two of the integer virtual manipulatives (applets) from the nlvm website: Number Line Bounce and Color Chips - Subtraction. These virtual manipulatives are a great way for students to explore inter addition and subtraction in a fun and conceptual format. My students really enjoy working through these labs and I enjoy the math understanding and discussions that follow. Five other nlvm labs for Middle School Math are available in My TpT Store -- Check ‘em Out!It w