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Middle Grades Math: Verbal to Visual: Sketching Graphs
by Texas Instruments - Action Consequence Lesson

Published on August 26, 2011

Objectives

  • Students will sketch a graph that exhibits the qualitative features of a function that has been described verbally (CCSS).
  • Students will describe qualitatively the functional relationship between two quantities by analyzing a graph (e.g., where the function is increasing or decreasing, linear or nonlinear) (CCSS).
  • Students will model mathematics (CCSS Mathematical Practice).
  • Students will attend to precision (CCSS Mathematical Practice).

Vocabulary

  • function
  • increasing/decreasing function
  • constant rate of change
  • quadrants

About the Lesson

This lesson involves sketching graphs based upon important features described verbally in a situation.
As a result, students will:

  • Focus on identifying important features that aid in drawing sketches of functions, such as:
    • where the function is increasing, decreasing, or remaining constant;
    • the slope of the function or parts of the function, and;
    • the quadrants the function lies in.
  • Use these same ideas to describe the functional relationship between two variables as they write their own situation for a partner student to analyze.

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