Water Math: Dimensional Analysis

As I mentioned last Friday, I am scheduled to teach two half-day sessions for the California-Nevada Section of the American Water Works Association on May 6 in Rancho Cucamonga. The topics are Math Reviews to prepare for the State’s Treatment Operator certification exam on May 15. The morning session will focus on T-1 and T-2 level problems, and the afternoon with focus on T-3 and T-4. If math is your “Achilles’ Heel” on the exam, make plans to attend. You can find the information at www.ca-nv-awwa.org, or you can just phone them at 909-481-7200.

Today, I am feverishly working on the handouts for these sessions. I include for your amusement this installment from Bil Keane’s “The Family Circus.” Mom is shown here doing an essential math skill: dimensional analysis. Dimensional analysis is the tool we use to convert from one dimension into another. On the State exams, we see this most often when converting between gallons and cubic feet. If you can’t do that, you won’t pass the State test — it’s really that important! See if you can duplicate Mom’s calculation. If you can’t, perhaps you should join me next Thursday!

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