Cost of light bulbs - updated!

2023-11-20 09:44:30

Cost of light bulbs - updated!


There's a lot of misinformation out there about the cost to consumers of CFL and LED bulbs and the savings in energy and money that could be realized. Let your students "do the math" and realize some of the profit that could be made by changing our ways. This activity makes for a great activity for Earth Day or really any other day of the year.  Lots of math to be explored including work with decimals operations, order of operations, graphing, systems and piecewise functions. The task is accessible for students from 5th grade through high school. Students might also want to compare the costs of each bulb over time for various number of bulbs in their home using this interactive Desmos graphing application. 

For Adventurer members we have a Word docx, and Excel sheet with loads of data, and solutions and teacher suggestions below.

Thanking Jason Kibbe, Chambersburg, PA, middle school gifted support teacher, for his encouragement in updating this activity.


Activity Solutions & Supporting Materials
Share this:
Comments (0)
    Display 1 - 10 Of total 0
    How much snow is that?
    ❄️In this updated activity, stude...
    Moneymaking holiday movies
    Which movie do you think is the highest grossi...
    Spiraling squares - compass and straight edge
    Can you see the many spirals ...
    Can you show that the Pythagorean Theorem works?
    Use this activity to help your students work thr...
    Kilauea's lava flow
    [caption id="attachment_15749" align="aligncenter"...
    BP and the stock market updated
    Free Stock photos by Vecteezy The...
    Total lunar eclipse
    On the morning of November 8, 2022, many of us...
    It's latke time
       In Leslie's family it is tradition...
    Temperature change (Discussion Prompts)
        Note: This is not intended...
    Cholera in Haiti
    On January 12th of 2010, there was a tremendous,...