Talk or Text
In this lesson, students compare different costs associated with two cell phone plans. They write equations with 2 variables and graph to find the solution of the system of equations. They then analyze the meaning of the graph and discuss other factors involved in choosing a cell phone plan.
Material Type: Assignment
Technical Format: HTML/Text
Date Added to MERLOT: December 15, 2009
Date Modified in MERLOT: June 17, 2010
Submitter: Michelle Parker
Keywords: two variable linear equation, system of equations, graph
Reviewed by members of Editorial board for inclusion in MERLOT.Editor ReviewVery good quality; in queue to be peer reviewedavg:
- User Rating:
- Discussion (1 Comment)
- Learning Exercises (2)
- Personal Collections (none)
- Accessibility Info (none)
User review 4 average rating
Primary Audience: Middle School, High School
Mobile Compatibility: Not specified at this time
Technical Requirements: Adobe software
Cost Involved: no
Source Code Available: unsure
Accessiblity Information Available: unsure
Creative Commons: unsure
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Discussion for Talk or Text
4 years ago
Anhtai Huynh (Student)
After spending a good 10-20 minutes looking over the material, I realize this would be quite useful for students to understand a real-life application for math and making use of the equations for it. I looked through it briefly and followed the directions that is describing how to write the equation for that particular situation when comparing different plans. It's very well organized, much like a college syllabus, so it is easy to follow and navigate. The material accurately present concepts of graphing and how to apply a simple equation using the two factors to a graph, which can help us incorporate our understanding of it to harder and much more complicated problems. Although it is very short and intended more for the teacher as a teaching tool, it is still very easy to follow as it is broken down into clear sections, step by step, showing the methods and ways to approach the math.
For a lesson, it's very well organized and easy to follow.
Time spent reviewing site: 10-20 minutes.