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.

Roads Up Mountains

I was mountain biking up the 2060 switchbacks when I glanced up to the left.  The edge of my road loomed steeply.  “Wow, that’s high” I said to myself, imaging how hard it would be to scramble up the 120 … Continue reading

Posted in Curriculum, Teaching | Tagged , | Leave a comment

Slide and Divide

One of our student tutors sent me this link, Slide and Divide , to a method of factoring trinomials.  It is essentially the one I explained extensively in https://jrh794.wordpress.com/2011/12/20/the-best-way-to-factor-trinomials/   I just argue to keep the fractions in the factored form since it is … Continue reading

Posted in Curriculum, Math Explorations, Pedagogy, Teaching | Tagged , | Leave a comment

Non-conscious Deep Work

I enjoy visiting the Study Hacks blog.  Its author, Cal Newport, writes about organizing one’s tasks with emphasis on doing the deep work required of a college professor, in his case, proving theorems and writing papers.  His latest book is, … Continue reading

Posted in Math and Me, Rants, Teaching | Tagged | Leave a comment

The “I” and the “You” of It All

Somewhere in my teaching career, now 35 years of it, “I” and “You” as grammatical subjects disappeared from my classroom vocabulary.  For instance, “I” don’t need you (the student) to understand this particular concept. “You” (the student) (in my opinion) … Continue reading

Posted in Pedagogy, Teaching | Leave a comment

This Is What “Power = .006” Looks Like.

My current screen saver is this graphic: I found it on Andrew Gelman’s blog here.  The red areas are based on an alpha (probability of rejecting a null hypothesis) of 0.05.  A recent paper (preprint) endorsed/authored by a fat paragraph of … Continue reading

Posted in Math Explorations | Tagged , | Leave a comment

Dusting the Book Shelves

A summer chore was to dust the book shelves in my home.  As you can see, the shelves (There are two more bays of shelves to the right.)  have an open design thus collecting their share of dust and incidentally … Continue reading

Posted in Rants | Tagged | 2 Comments

What to Ask

A student you know is having difficulties in a class.  Before giving advice, gather some facts.  Ask these questions. Did you go to every single class? If not, what did you do during those hours? If not, how did learn … Continue reading

Posted in Pedagogy, Teaching | Tagged | 1 Comment