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From	Message
zorroloco 08-Dec-24, 08:14	Tutoring again After a 4 year break, I have my first math tutoring session today. Got an email from a parent whose daughter had me as a substitute last year who said she understood my teaching better than her teacher’s (sad 🥲) Long division and synthetic division of polynomials. Not my favorite thing to teach, but for $50/hr, I’ll force myself 🤣🤣 Hopefully through word of mouth I’ll pick up more students - It’s definitely easier than substitute teaching!!
zorroloco 08-Dec-24, 08:39	Synthetic division Is really cool m.youtube.com
zorroloco 08-Dec-24, 08:59	Had to break out The TI 85 graphing calculator. Dead batteries. These things are amazing. When I was in school, we had 4 function calculators. Now they solve systems of polynomial equations, graph functions, and do statistical calculations and even can differentiate!! Incredible technology
vocihc 08-Dec-24, 10:36	Sounds rewarding... Just don't look at your padawans with those "crazy eyes"...
zorroloco 08-Dec-24, 10:45	Voci The crazy eyes are the only thing that works some days
zorroloco 08-Dec-24, 20:06	Went well It wasn’t polynomial division. It was simplifying radical expressions. Apparently it went well… They want to hire me for two sessions a week. Sweeeet!
jonheck 09-Dec-24, 03:37	zorroloco <when I was in school we had 4 function calculaters.> Gee, how fortunate you were! Slide rules were available when I was in high school. Although I had a course on them in HS, I was nowhere near proficient. An expected homework assignment for HS senior physics was, “the next chapter, every other problem at the end”, - “AND, the last two”, Chrome Dome seemed to get a kick out of emphasizing as we were completing the last physics class of a 2 week in school period at Patterson Co-op HS. Them last two problems typically required pages of hand calculations, with all work submitted if you wanted any credit for your effort. A demonstrated attempt on the last 2 was apparently among the minimum requirement's for a “B”. Not turning in ones homework was guaranteed to get ya the promised “F”, and no senior physics credit. The class size was down about 50% by the end of the 1st semester. A four function hand held calculator of the type that would be widely available about two decades later would have been great!
zorroloco 09-Dec-24, 05:41	Jon I remember getting my first 4 function calculator circa 1971. It cost my parents $30. That’s well over $200 today! Now fir $85, you can get a graphic calculator that gas 10 tines more computing power than the Apollo missions to the moon. I just missed slide rules by about 5 years
jonheck 09-Dec-24, 07:13	zorroloco <circa 1971, $30> Hand held or desk top? 71 would have been among the earliest hand helds. My boss was showing off his toy in 74 and I’m thinking more like $200. It may have had some low end memory. Were you 10 or 11 when you got your 1st calculator? My youngest step son was using TI graphic calculators in mid 90’s HS, they are extremely capable, and reasonably priced. The miniaturization of electronics, especially digital electronics, thanks near solely to the invention of the transistor, must surly place the transistor as the singularly most significant of all human inventions.
zorroloco 09-Dec-24, 07:17	Jon Handheld… may have been a couple years later…. But definitely before 1974. I could be remembering the price wrong, but Im sure it wasn’t $200 Yeah I was 12 ish
mo-oneandmore 09-Dec-24, 07:50	Zorro your 05:41 comment. There ain't no-way you got a hand-held solid state calculator for $30.00 in 1971, Brother. I bought one of the early hand -held calculators somewhere around 1970 for over $200.00 and it was "loaded" with four-function capability (+, -, x and divide) and a constant. Yea it was a faster than doing the work on a slide rule (also more accurate than a slide rule), a piece of paper or an abacus but that's about it. See old Smithsonian Institute calculator collection (no prices shown). americanhistory.si.edu. And Jon: Do I ever remember our ass-hole, "Chrome-dome" physics teacher.  I also remember his large wall-hanging slide rule that he could flip-over in a few seconds to apply information on the reverse side --- of course he never gave us enough time for us students to figure-out what he was doing with it.
zorroloco 09-Dec-24, 07:56	One I think it looked like this americanhistory.si.edu
lord_shiva 09-Dec-24, 19:51	Mo is right. My uncle bought my cousins each basic LED calculators circa 1975 for about $150 each. By 1978 I could get one that included trig functions, TI-30, for $20. My dad continued doing sums with stylus and chain. In my hot little hand as I type is a TI-30X A. LCD instead of LED. I bought it last year for around $12. They added a cube root button, I just noticed, though y^x and y^(1/x) [xth root of y] remain. I think it has a few extra registers, but I’m not sure. The old one had good memory too.
lord_shiva 09-Dec-24, 19:54	Target vs. Walmart Looking up this model, Target has it for $11 now, and Walmart $65. Not sure why there is such a huge gap. I’m sure I’ve seen less pricier versions in Walmart shelves in the $10 to $15 range.
bobspringett 09-Dec-24, 20:56	How did the constipated mathematician solve his problem? He worked it out with pencil and paper.
zorroloco 10-Dec-24, 04:11	Ok Maybe I’m misremembering. I know I had one before we moved to Oregon in 1974. Can’t imagine my parents paying that kind of money for a 7th grader to do algebra. But whatever 🙂 Now I use a TI-85 graphic calculator that cost $85 6 years ago.
lord_shiva 10-Dec-24, 11:29	Zorro how do you get students? I would love to tutor math.
zorroloco 10-Dec-24, 11:55	Shiva This one liked me as a substitute… said she understood me far getting than her teacher. Word of mouth and substituting is best. I’ve used Craig’s List, but it’s hit or miss.
zorroloco 10-Dec-24, 12:46	Far better Far better Not far getter 🤣
lord_shiva 10-Dec-24, 16:57	Far Getting I think I have been far getting some of my early math lessons.
zorroloco 10-Dec-24, 19:27	Shiva Har har I had to remind myself how to do synthetic division of polynomials
lord_shiva 10-Dec-24, 22:03	Synthetic Division I discovered I could use the same technique I use for regular long division taught by Mrs. Vine in fourth grade. I sure wish I could tell her how greatly I appreciate the effort she put into me.

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