Tag Archives: education

October 2020 in Review

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In current events, this was just the month that the fall resurgence of Covid-19 exploded in the U.S. and around the world. Just a month when a new, controversial Supreme Court justice was sworn in. Just the last month leading up to the Biden-Trump election, amid a swirl of questions about a peaceful and orderly transfer of power if the voting goes the way the polls clearly say it is going to. Just a month when my home city erupted in “unrest” for the second time this year and the National Guard rolled in. (Incidentally, Joe Biden is also here as I write this on November 1, and I wonder if the National Guard rolling in is entirely a coincidence.)

Most frightening and/or depressing story: Global ecological collapse is most likely upon us, and our attention is elsewhere. The good news is we still have enough to eat (on average – of course we don’t get it to everyone who needs it), for now.

Most hopeful story: We have almost survived another four years without a nuclear war. Awful as Covid-19 has been, we will get through it despite the current administration’s complete failure to plan, prevent, prepare, respond or manage it. There would be no such muddling through a nuclear war.

Most interesting story, that was not particularly frightening or hopeful, or perhaps was a mixture of both: There are at least some bright ideas on how to innovate faster and better.

online educational resources

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There are a ton of articles about online education resources right now, when so many of us are trying to work from home, take care of children, and keep an eye on older relatives all the same time. None of this helps those of us with small children very much. There are a ton of educational materials available, but very young children are still going to need constant attention in order to make the most of them, and you would also need to somehow find some prep time away from the children in order to make the most of them. For most of us, there is almost no time away from the children, and if we get a precious few moments we may want to invest them in our own mental health, maintenance of which is necessary for the children in the long run. The only advice I have there is for adults to take shifts to give each other some down time if possible, and spend that precious limited downtime on things like exercise (outside if at all possible), yoga, meditation, hobbies like gardening or reading things that are fun and not stressful. I am finding the situation moderately stressful, but I recognize it is much harder for lower income people, single parents, people in the medical field, and anyone who is sick or taking care of someone who is sick.

Anyway, now that I have said they are not helpful, here are a few resources I have come across in the last few days. Some of these are Philadelphia-area specific but other cities might have similar things.

To my fellow parents, I really do wish you all the best. To those thinking about becoming parents, being a parent really is a wonderful, rewarding experience on balance. It’s just that if you live in a country without much family or government support, and plan to work full time while raising said children, you should be aware that you are giving up pretty any semblance of personal leisure time for several years until they become more independent.

the Flynn effect and the reverse Flynn effect

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When IQ tests are taken by each generation, they are always normalized so that the average is a score of 100. However, when people are asked to take tests from older generations, they tend to do better than the older generations did. This is the Flynn effect. It was very consistent throughout the second half of the 20th century and into the 21st, but a number of studies in Scandinavia indicate that it may have reversed more recently. Immigration is one controversial explanation that has been suggested, whether due to genetic or cultural reasons. But the study I link to here tested the effect within families against the effect across unrelated people, and found that it is just as strong within families. This suggests environmental factors such as education and nutrition as the culprits, although the article does still put “migration” in this category. I suppose if you had a society with a high quality of nutrition and education, and you then have an influx of new people with more bad habits (let’s say, a high rate of smoking), that could have an effect.

youcubed

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This site is all about fresh ideas for teaching high school math. Apparently a lot of people agree that the traditional U.S. approach of algebra 1, geometry, algebra 2, and calculus is not working. A lot of people seem to think data science is the answer. It sounds okay to me to start with interesting data and then work backward to math theory and systems concepts. I do use geometry pretty much daily in my work, at least concepts like areas and volumes. Are those geometry? I think I originally learned them in high school chemistry class. I almost never use calculus symbols, but I use calculus concepts like rate of change and accumulating and depleting stocks daily. I solve those numerically rather than symbolically. So maybe this is what we should be teaching in high school, then working our way to the symbols for people who really need it, for example the ones who are going to be programming the computers that the rest of us use to solve various problems. A little statistics and probability is a good idea, but even that can be more experiment based and less symbolic at first.

July 2019 in Review

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Most frightening and/or depressing story: Most hopeful story: Most interesting story, that was not particularly frightening or hopeful, or perhaps was a mixture of both:
  • I laid out the platform for my non-existent Presidential campaign.

deliberate practice

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Open Culture has a post with lots of links to ideas on the best ways to practice something new. Hint: just repeating bad habits doesn’t do the trick.

Psychologist Anders Ericsson, the single figure most closely associated with deliberate practice, draws a distinction with what he calls naive practice: “Naive practice is people who just play games,” and in so doing “just accumulate more experience.” But in deliberate practice, “you actually pinpoint something you want to change. And once you have that specific goal of changing it, you will now engage in a practice activity that has a purpose of changing that.”

So it turns out that experience and wisdom aren’t the same thing after all. I would say you can’t have wisdom without experience, but you can have experience without wisdom.

May 2019 in Review

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This wasn’t my most prolific writing (or reading) month ever. In fact, it my have been my worst. But here are a few highlights of what I did get around to.

Most frightening and/or depressing story:

  • Without improvements in battery design, the demand for materials needed to make the batteries might negate the environmental benefits of the batteries. I’m not really all that frightened or depressed about this because I assume designs will improve. Like I said, it was slim pickings this month.

Most hopeful story:

  • Planting native plants in your garden really can make a difference for biodiversity.

Most interesting story, that was not particularly frightening or hopeful, or perhaps was a mixture of both:

  • Joseph Stiglitz suggested an idea for a “free college” program where college is funded by a progressive tax on post-graduation earnings.

 

data-driven economics 101

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This article in Vox is about an entirely data-driven approach to introductory economics. The idea of asking students to discover their own theories is an interesting one, but in most fields I do think there is an established body of theory and standard practice that students should learn before they are qualified to go off reinventing their own wheels. If a new generation doesn’t know what they don’t know, they have to reinvent everything and society doesn’t make progress.