School Improvement in Maryland

Lesson Plan: Lesson plans were written by Maryland mathematics educators and could be used when teaching the concepts.

Goal 1 Functions and Algebra

Expectation 1.2 The student will model and interpret real-world situations using the language of mathematics and appropriate technology.

Indicator 1.2.3 The student will solve and describe using numbers, symbols, and/or graphs if and where two straight lines intersect.

Lesson Content

Systems of Linear Equations - Slope-Intercept Form

Objectives

  • Students will use the calculator to represent a situation as a table, graph, and equation.
  • Students will write systems of equations and find solutions to systems of equations.
  • Students will explain how they determined their solutions to a system of equations. Students will also justify their solutions.

Other Indicators Addressed

1.1.2 The student will represent patterns and/or functional relationships in a table, as a graph, and/or by mathematical expression.
1.2.1 The student will determine the equation for a line, solve linear equations, and/or describe the solutions using numbers, symbols, and/or graphs.

Materials Needed

Calculator Skills

  • Enter data into a list
  • Setting up appropriate viewing windows
  • Graphing systems of linear equations
  • Finding the point of intersection of two equations

Assessment

  • Class discussion
  • Group work

Lesson Structure

Concept Development for this lesson uses the following worksheet: Farmers Market.
Teacher tips for using Farmers Market

    Development of Ideas

    Farmers Market
    Incorporate group work and class discussions into the Lesson as students complete the Student Worksheet.

    Additional Practice

    Systems of Linear Equations
    These problems are provided for you to use in any one of a variety of ways such as homework, an individual check for understanding, review, or quiz.

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