Author Archives: jrh794

About jrh794

I am a sixty-five year old math instructor at Southern Oregon University. I taught at the College of the Siskiyous in Weed California for twenty-six years. Prior to that I worked as a computer programmer, carpenter and in various other jobs. I graduated from Rice University in 1967 and have a MS in Operations Research from Stanford. In the past I have hand-built a stone house and taken long solo bicycle tours. Now I ride my mountain bike and play golf for recreation.

What Do You Do with 729 Wine Corks?

What Do You Do with 729 Wine Corks?  You make a model of a Sierpinski Triangle. This gives a sense of scale. The corks were glued with wood glue.  That type of glue didn’t work with plastic corks much to … Continue reading

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Retirement – Why and What I Am Losing

I ran across the notes for these two short posts: Muscles Ache for the Feel of a Stylus and I Wish I Could Tell You … I think they describe well the reasons I dislike teaching online and why I … Continue reading

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Retirement – Throwing Away Hurts

I will be gradually emptying my office this summer prior to my official retirement date in September.  I have (had) a full file box labeled teaching ideas which, to be honest, I have not looked into  in many years.  I … Continue reading

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Retiring – Why?

The situation has changed and I am retiring.  To respond to my post, Not Retiring – Why? , my workdays still have intention but stressful intention.  As math chair I am making hard decisions for uncertain futures.  But mainly, I don’t … Continue reading

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Multiply Two Lines – Visualizations

A friend of mine, Paul Grilley, stopped by a while ago to show me a clever geometric construction of tangent lines to parabolas. This got me thinking about about how to visualize the multiplication of two straight lines. I am … Continue reading

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Lecturing at x1.5

My wife, when I first met her, had 20-5 vision.  She lived in a different visual world than me – reading road signs, spotting singing birds in trees, noticing lint on my shirts well before me.  In fact, I never … Continue reading

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Not Retired – Why?

I am a full-time faculty member here at Southern Oregon University.  I am also 74 years old. So, why am I not retired or planning to retire? The reason: This job gives my days intention.  Everyday I have a list … Continue reading

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Another Way to Solve Quadratic Equations

Here is a recent video on how to solve quadratic equations.  It depends on the fact that the two roots lie symmetrically about the x-coordinate of the vertex.  https://www.popularmechanics.com/science/math/a30152083/solve-quadratic-equations/  It eliminates the guessing or systematic trials by using in simpler quadratic … Continue reading

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Do We Really Need Fraction Bars?

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A Year of Nights of Wondering VIII: Stuck Edition

My students have taken their seats and are beginning their daily quiz.  One says, “I’m stuck, Mr. Hatton.”  I murmur something about doing the best she can.  She repeats, “No, I’m stuck.”  I remind her  about the online quiz makeup … Continue reading

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