• Quiz # 10

    Posted by Millard Lewis on 10/19/2016

    The word problem for the Quiz we are taking today:


    Create a [ 3 X 3 ] matrix.  This matrix should have 3 products, each product should have 3 sizes, and each product and size should have a price.  Now, make a second matrix that has 3 rows.  This matrix should have the number of each type of product you would like to buy the 1200 students at NOHS.  Each number in your matrix must be a positive number, and all 1200 students must be accounted for.  


    Multiply the two matrices together, and explain in sentences what the results mean.

    Include evidence of where you get your matrix numbers.  Don't just make them up.

    The first matrix you make must be based on something real, such as:



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  • Law of Sines, etc

    Posted by Millard Lewis on 10/3/2016

    Today in class we will learn how to find the area of a triangle without having to find the height.  We will actually learn 2 formulas:

    Area = 1/2 a b sin C

    Heron's Formula: https://www.mathsisfun.com/geometry/herons-formula.html


    We will also practice with the Law of Sines and the Law of Cosines.


    Here's the worksheet we will work on today.


    Area WS


    Test # 4 is Wednesday, 10/5, and the midterm is Friday.















    Twitter is always a good place to go to find out what my boys and I do on the weekends...

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  • Test # 3 Review

    Posted by Millard Lewis on 9/21/2016

    Today, Precalculus will be attending a presentation from some UGA people in the Media Center.

    Tomorrow, we will have a test on the many trig identities we have worked on during the past few weeks.  The answers to the review are posted here.











    PS: Joshua and Luke were born in the same place.  Mr. Lewis was born 2100 miles away from that place.  Mrs. Lewis was born in a place that would take 16 hours to fly to, from where Mr. Lewis was born.

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  • Voluntary Quiz

    Posted by Millard Lewis on 8/29/2016

    I was out on Friday, so I wasn't able to give out the Voluntary Quiz on trig graphs for Precalculus.  So, follow the link below to access the Voluntary Quiz.  You can email me the answers (mlewis@oconeeschools.org), send me a message on Twitter with your answers (@MrLewisNOHS), or write them down and turn them in to me tomorrow before class.


    Voluntary Quiz # 4

    Note: there are three pages.











    Note: Joshua and Luke are one year apart (until next month)...

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  • Calendar

    Posted by Millard Lewis on 8/24/2016

    Upcoming big dates:


    Unit Circle Project - due Thursday, 8/25

    Quiz # 4 - (Voluntary) pass out Friday, 8/26; due Monday, 8/29

    Test # 2 - Wednesday, 8/31


    The unit we are on is over graphing the trigonometric functions.  Here's a couple of links: one for the graphs and one for some trig graph paper:




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  • Test # 1

    Posted by Millard Lewis on 8/17/2016

    Our first test is today!  We have our introduction to trigonometry and the unit circle on there, as well as some review over functions.  As we agreed upon, the students will evaluate the characteristics of an absolute value function.


    PS: As we discussed, the boys' middle names begin with M and R.

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  • Precalculus (w/o hyphen)

    Posted by Millard Lewis on 8/3/2016

    Welcome back to school!  For many in this class, this is the last year of high school.  I am grateful to be a part of the process for you moving from high school to whatever you are preparing for beyond the world of NOHS.

    In order to best prepare for that passing grade in December, I encourage all students to plan early to come in for help whenever you need it, or even if you just want to make sure you are on track.  I get no pleasure in failing seniors, so I will work with you to get the grade you want (within reason...).


    I have been battling with spell check for years about the spelling of Pre-Calculus.  With or without hyphen?  I think I just need to add it to the dictionary.


    I will post the syllabus and signature form here for everyone's reference.

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