Understand a rational number as a point on the number line. Extend number line diagrams and coordinate axes familiar from previous grades to represent points on the line and in the plane with negative number coordinates.
a. Recognize opposite signs of numbers as indicating locations on opposite sides of 0 on the number line; recognize that the opposite of the opposite of a number is the number itself, e.g., –(–3) = 3, and that 0 is its own opposite.

Formative Assessments
Formative Assessments
Explaining Opposites
Graphing Points on the Number Line
What Is the Opposite?
Graphing on Cartesian Planes
Locating Quadrants
Graphing Points in the Plane
Point Locations
Virtual/Hands-on Manipulatives
Virtual/Hands-on Manipulatives
Number Line Bars
Change Me To Real Text
Change Me To Real Text
Assessment Questions
Assessment Questions
Equation Editor 1
GRID 3
GRID 6
Equation Editor 2
GRID 4
GRID 7
Equation Editor 9
GRID 5
GRID 8
Videos of Expert Instruction
Videos of Expert Instruction
Number Opposites Practice
“Graphing on the Coordinate Plane” by Math Antics
Use Real Link and Title
Hook/Performance Tasks
Hook/Performance Tasks
Integers on the Number Line 2
“Fun With a Dot and a Line” by Andrew Stadel





