Which is most expensive?

Who knew that creams for your face could be so expensive.  I’m going to have to rethink what to buy for my mom.

In this activity students observe some prices of facial moisturizers; choose one and calculate its price per fluid ounce (volume – not weight); and use that rate to calculate the cost of some more common products like milk and gasoline.  For a finally they look into scorpion venom.

Fancy facial moisturizers

LaPrairieSkinCaviarLuxeCream LaMerMoisturizingSoftCream LimitedEditionRe-NutrivUltimateLiftAge-CorrectingCreme 3LABWWCream Estee

Clicking on any of these images will show them larger in a new window.


The activity: Wow!FaceCreams.pdf

For members we have an editable Word docx and solution/teaching tips:

Wow!FaceCreams.docx    Wow!FaceCreams-solutions.pdf

CCSS: 6.RP.A, 7.RP.A, MP.6, MP.8

from Yummy Math http://www.yummymath.com/2016/which-is-most-expensive/

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