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  • GENERAL INFORMATION
    • Title:
      Learning about Rate of Change in Linear Functions Using Interactive Graphs  

       
      Resource ID: 643
      URL: http://illuminations.nctm.org/LessonDetail.aspx?ID=U132
      Resource Description: This example illustrates the use of dynamic graphs to learn about change and linear relationships. Users can drag a slider on an interactive graph to modify a rate of change (cost per minute for phone use) and learn how modifications in that rate affect the linear graph displaying accumulation (the total cost of calls). In this first part, Constant Cost per Minute, the cost per minute for phone use remains constant over time. In the second part, Changing Cost per Minute, the cost per minute for phone use changes after the first sixty minutes of calls.
      Instructional Component Type(s): Virtual Manipulative, Teaching Idea (Primary Type)
      Keywords: graph, linear functions, rate of change, slope, x -intercept, y-intercept
      Intended Audience: Educators, Students
      Suggested Technology: Computers for Students, Internet Connection
      Public Remarks: By Author/Submitter
      Resource could be used on-line with a LCD Projector for demonstrations.
      Resource Collection: CPALMS

  • RELATED STANDARDS (1)
    •
      »  MA.8.A.1.2: Interpret the slope and the x- and y-intercepts when graphing a linear equation for a real-world problem.
          Cognitive Complexity: Moderate     l Date Adopted or Revised: 09/07        
          Belongs to: BIG IDEA 1


  • RELATED ACCESS POINTS (2)
    • » MA.8.A.1.In.a: Use information from physical models, diagrams, tables, and graphs to solve addition, subtraction, multiplication, and division number sentences (equations) based on real-world problems.
      » MA.8.A.1.Su.a: Use information from physical models, diagrams, tables, and pictographs to solve number sentences (equations) involving addition and subtraction with one-digit and two-digit numbers.

  • PEDAGOGY


  • SOURCE & ACCESS INFORMATION
    • Name of Author/Source: National Council of Teachers of Mathematics
      Resource recommended by: Charlotte Cannizzaro
      Web Address of Author/Source: http://nctm.org/
      Is this Resource freely Available? Yes
      Access Privileges: Public

* Please note that examples of resources are not intended as complete curriculum.

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