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Coordinate Plane Geometry

Coordinate Plane Geometry

Students will learn about coordinate geometry and create a colorful creation using ordered pairs.

Lesson Plan

Supplies Needed

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  • Paper
  • Ruler

Steps

  • Step 1

    An ordered pair in coordinate geometry is used to represent the position of a point on a coordinate plane - two perpendicular intersecting lines of which the horizontal is the x-axis and the vertical is the y-axis. The axes will have graduated numbers on them. Display an image of this configuration and explain that in a pair such as (2,4) the first number refers to the x-axis and the second refers to the y-axis.

  • Step 2

    Ask students to draw a coordinate plane using a ruler to create the lines and add graduations (a set of markings used to depict measurement). Ask students to draw a shape by arranging dots on the plane and then using a ruler to draw lines to connect the dots. Have them create a list of ordered pairs that represent where each dot was placed. Ask students to create a design inside the shape they created.

  • Step 3

    Have students swap their lists of ordered pairs with another classmate and ask this partner to recreate the shape and add a design to it.

Standards

MATH: Analyze, compare, create, and compose math ideas using written, oral, and drawn lines, shapes, forms, and patterns.

MATH: Create models that demonstrate math concepts and attend to precision.

MATH: Include knowledge of mathematics habits of mind and operations in writing, speaking, and artifact/model production.

Adaptations

Give students a list of ordered pairs and have them plot them on a coordinate plane.

Challenge students to create grid art using graph paper. Have them draw out a design of their choice, whether abstract or representational, list the ordered pairs used to create it, and then fill in the image.