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K–12 teaching and learning · from the UNC School of Education

Line 'em up

http://illuminations.nctm.org/LessonDetail.aspx?ID=L617

A lesson plan for grades 6–8 Mathematics

Provider: National Council of Teachers of Mathematics


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This lesson is a self discovery approach in understanding the process of plotting points on a coordinate plane, using a program for TI Graphing Calculator. Illuminations provides an activity sheet, game boards, and ordered pair cards to assist in the completion of this lesson. Prior to teaching this lesson, teachers need to download the Points and PTGame programs to the student calculators. After dividing students into groups, the teacher explains coordinate plane, including the location of the x-axis, y-axis, Quadrant I, Quadrant II, Quadrant III and Quadrant IV, and then students work together. After the class discusses their procedure and findings, they play the Line ‘Em Up game using game chips and a coordinate plane.

Students will:

  • Plot a point given its coordinates.
  • State the coordinates of a given point.

NCTM Standards and Expectations covered in this lesson include:

  • Modeling and solving contextualized problems using various representations, such as graphs, tables, and equations.
  • Relating and comparing different forms of representation for a relationship.

North Carolina Curriculum Alignment

Mathematics (2004)

Grade 6

  • Goal 3: Geometry -The learner will understand and use properties and relationships of geometric figures in the coordinate plane.
    • Objective 3.01: Identify and describe the intersection of figures in a plane.
    • Objective 3.03: Transform figures in the coordinate plane and describe the transformation.
  • Goal 5: Algebra - The learner will demonstrate an understanding of simple algebraic expressions.
    • Objective 5.04: Use graphs, tables, and symbols to model and solve problems involving rates of change and ratios.

Grade 7

  • Goal 5: Algebra - The learner will demonstrate an understanding of linear relations and fundamental algebraic concepts.
    • Objective 5.01: Identify, analyze, and create linear relations, sequences, and functions using symbols, graphs, tables, diagrams, and written descriptions.
    • Objective 5.02: Translate among different representations of algebraic expressions, equations and inequalities.

Grade 8

  • Goal 5: Algebra - The learner will understand and use linear relations and functions.
    • Objective 5.03: Solve problems using linear equations and inequalities; justify symbolically and graphically.