Digital Skills: Developing Online Assessment Skills in Everyday Classroom Activities Western Reserve Public Media
Coordinate Grids
Learning coordinate graphing by engaging with online tutorials, student created secret messages and self analysis.
I can:
  • I can plot an ordered pair of rational numbers on the coordinate plane.

  • I can locate a rational number on the number line.

  • I can explain how the signs of any ordered pair determine which quadrant it will be located in on a coordinate plane.

Tech Skills:
  • Manipulating an interactive coordinate grid

  • Zoom in/Zoom Out

  • Drag and Drop

  • Select appropriate digital graphing tool

Materials and Resources:

Quizlet for Coordinate Grid Review

Kahn Academy - 1st Quadrant

Review Coordinate Graphing 1st Quadrant Only

Kahn Academy - 4 Quadrants

Review Graphing Coordinates 4 Quadrants

Interactive Cartesian Coordinate Grid Interactive (

Secret Message Worksheet

Geogebra Workbench for Coordinate Geometry:


Grade Level:
  • 6th Grade

Subject Area:
  • Mathematics


Activity 1

  1. Students should have a working knowledge of rational numbers.

  2. Using the Coordinate Grid Flashcards you can introduce or pre-assess coordinate grid vocabulary. Students should review the flashcards until they are able to work through the Match Game with confidence.

  3. Students who demonstrate a need for an introduction to coordinate graphing:
    Use the Kahn Academy link for 1st Quadrant work. Students can progress through the six parts of the lesson. When students have completed the graphing coordinate review successfully they should move to the Kahn Academy 4 Quadrant Lessons. Students can work through the nine parts of the lesson until they successfully complete the Review Graphing Coordinates 4 Quadrants.

    Students who need a review of coordinate graphing:

    Students should access the Kahn Academy lesson for 1 Quadrant Coordinate Graphing. They can skip to the Review (last link in the lesson) and determine if they need more information or score well enough to proceed to the Review Graphing Coordinates 4 Quadrants. Students can determine if they have the knowledge by pre-assessing their skills and returning to the Kahn Academy lessons if they need more information to successfully demonstrate their coordinate graphing skills.

  4. After students finish their self-paced of coordinate graphing they should be put with a partner to work through Word Graphs! Each team can be two or three students. Have each student go to Secret Message Worksheet. They should create their own message following the sites guidelines. Each student will create a pdf that generates ordered pairs, which when plotted spell out their secret message. Students should keep their message “secret” from their partners. NOTE: Students can select the size of the coordinate grid. This could be assigned by the teacher to differentiate this portion of the instruction.

  5. Once each member of the team has created their secret codes (coordinate pairs) and they have been approved by the teacher, each student should open the coordinate workbench for coordinate geometry ( Students should practice using the point plot (drag and drop) as well as the segment tool to spell out the words by using the secred code (ordered pairs).

  6. If time permits you can have each group member solve two of the secret messages produced by their partners or one as a group that was produced by their teacher.

  7. Exit Ticket: Show What You Know This Exit Ticket uses Go Formative, a free assessment creator. Review the Go Formative guide and here is a view of the Exit Ticket so that you can recreate the questions Go Formative once you create an account.


Practice Activity

Students who need more practice could explore with one of the Geogebra activities in the supplementary resources section.

Student who want to practice more coordinate graphing could do an additional secret message provided by the teacher.

6.NS.6 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.

b. Understand signs of numbers in ordered pairs as indicating locations in quadrants of the coordinate plane; recognize that when two ordered pairs differ only by signs, the locations of the points are related by reflections across one or both axes.

c. Find and position integers and other rational numbers on a horizontal or vertical number line diagram; find and position pairs of integers and other rational numbers on a coordinate plane.

Supplementary Resources:

More Practice (basic):

Geogebra - Point Exploration:


More Practice (extension):

Coordinate Grid with rational numbers:

Basic Coordinate Point Review

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