Day 22: Represent Rational Numbers on the Coordinate Plane

Today in Math 6 and Math 6+ Mr. Giomini distributed back yesterday's Topic Two Midpoint Quizzes. These assessments can be utilized in preparation for next week's Topic Two Posttest as well as the Topic 1-2 Posttest.

Lesson 2.4: Represent Rational Numbers on the Coordinate Plane was introduced by analyzing what a makes up a coordinate plane. Students saw that a horizontal number line, x-axis, and vertical number line, y-axis, intersected to create four quadrants on which points can be plotted and compared. Students themselves then moved about on a coordinate plane that Mr. Giomini constructed on the floor.

In this lesson, students will be able to...

• identify and graph points with rational coordinates on the coordinate plane.
• reflect points with rational coordinates across both axes.

Essential Understanding:

• A coordinate plane is formed by a horizontal number line, the x-axis, and a vertical number line, the y-axis, that intersect at a point called the origin. An ordered pair (x, y) locates a point on the coordinate plane.