I need help raking my leaves

2023-11-20 09:44:49

I need help raking my leaves

Brian has spent too much time thinking about his leaves. He's worried about raking them alone and thinking about how long the job would take if people helped. In this activity students see the inverse relationship between number of workers and time to complete the whole job. They graph hyperbolas and consider how long the extreme condition of zero people raking might take to complete the job.   Useful extension ideas:

In the middle of a ratio unit?  Use this to see if kids apply proportional reasoning to this situation: Example: If it takes 1 person 12 hours then will it would take 2 people 24 hours?

Studying linear relationships?  Use this to show that not all relationships are linear.  Check out the table, rule and graph compared to linear relations.

They discover that you can't divide by zero.  With 4 people it takes 3 hours to rake my leaves, because 4x3=12 or 12/3=4.  What about 6 people? 6x2=12 or 12/6=2?  What about zero people? Can't happen because nothing multiplied by zero makes 12 and you can't divide 12 up by zero people.

CCSS: 5.G.1 , 5.G.2, 6.EE.6, 6.EE.7, 6.EE.9, 8.F.4, 8.F.5, HSA.CED.2,  HSA.REI.10, HSF.IF.4, HSF.IF.5, HSF.IF.7 MP7, MP8

The Activity: please-no-more-leaves2022.pdf

For members we have an editable Word docx, our Excel work, and solutions.

please-no-more-leaves2022.docx    RakingData.xlsx    please-no-more-leaves2022-solution.pdf

Download PDF Download Editable Files
Share this:
Comments (0)
    Display 1 - 10 Of total 0
    Hurricanes again
    Updated In this updated hurricane act...
    Season 12, American Idol
    Let your student study American Idol viewing...
    Figuring planting dates
      It's time to get ready to plant my gar...
    Effects of new MLB rules
    This year new rules ...
    Shoprite's solar energy goals on the African continent
      Shoprite is the largest supermarke...
    Collecting the most candy
    Use your student’s Halloween enthusiasm to...
    Radiation amounts
    This investigation will help you and your studen...
    Mother's Day
    How much do we...
    Have a heart
    Clicking on the image above will show the hear...
    What's with the plovers?
    Cute little birds.  Piping plovers are ...