Ideas for teaching high school and middle school math. Innovative approaches that address the changing ways that today's student learns material.
 
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I love solving problems. There is something very satisfying to me about figuring out a solution. This is amplified when a friend asks me a math question and when the answer has real world applications. 

This past Wednesday, a dear friend who is pericardiac physical therapist sent me the following text (shown to the left) asking me to convert feet/seconds to miles/hour. I was thrilled to but I was shopping with no pen and only had receipts for paper. I paused shopping and worked out the problem (thank you dimensional analysis) after borrowing a pen from a cashier. 

I took a picture of my work and sent her the solution.  Excited to teach dimensional analysis this year and use this as an example.  


***Correction update***
Whoops. The conversion is actually 8.2 miles per hour.  I forgot to type in a '0' in phone calculator and messed up the decimal. Thanks for pointing this out NS!

 


Comments

Annie Boyd
07/15/2013 06:56

How could you turn this into a common core math lesson?

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Natalie Turbiville
07/28/2013 17:50

Great question. I would pose this as an hook or closing in coordinate algebra in Unit 1 where dimensional analysis comes up. It is a great "See students, you do use this stuff in real life" example.

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NS
07/17/2013 07:11

I believe you're off a decimal place...it should be 8.2 mph.

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Natalie Turbiville
07/28/2013 17:48

You are correct! I should of checked my work and been a little more careful in the store. Thank you for pointing this out.

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Susan
07/19/2013 15:11

I love this one. :) This is something students can relate to. Thanks for sharing!

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Natalie Turbiville
07/28/2013 17:50

Yes! I love finding those things that students can relate to. Thanks for posting.

Reply
07/28/2013 15:11

Your blog is fantastic! I nominated you for a Liebster Award: http://msmathmadness.blogspot.com/2013/07/liebster-award.html

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Natalie Turbiville
07/28/2013 17:51

Thanks for reading and what an honor to be nominated!

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Ideas for teaching high school and middle school math. Innovative approaches that address the changing ways that today's student learns material.