Teacher resources and professional development across the curriculum

Teacher professional development and classroom resources across the curriculum

 Lesson Plans: Introduction Lesson Plan 1: The Phone Bill Problem - Linear Functions Lesson Plan 2: Hot Dog Sales - Solving Linear Equations and Inequalities

Lesson Plan 1: The Phone Bill Problem - Linear Functions

Overview:
In this lesson, students will learn how to write an equation of a linear function when given a set of data. They will interpret the meaning of the slope and y-intercept and then use the equation to find other values of x and y.

Time Allotment:
One 50-minute class period

Subject Matter:
Linear functions

Learning Objectives:
Students will be able to:
• Make sense of a set of data and plot it on a graph.
• Find the equation of the line that contains the data points.
• Understand the meaning of the slope and y-intercept.
• Use the equation to predict other x- and y-values.
Standards:
Principles and Standards for School Mathematics, National Council of Teachers of Mathematics (NCTM), 2000:

NCTM Algebra Standard for Grades 6-8
http://standards.nctm.org/document/chapter6/alg.htm

NCTM Algebra Standard for Grades 9-12
http://standards.nctm.org/document/chapter7/alg.htm

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