sykick

11 ms·

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by sykick 7y ago
It seems to me that Russia's desire for the Crimea is rational and understandable. It was an accident of history that the Ukraine ended up with Crimea after the split of the Soviet Union. I understand that my belief on this might not
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by sykick 7y ago
Collectively Europe outspends Russia in military investments. However, there is quite a bit of duplication in the individual European armies that make a straight comparison misleading. I suggest that military spending is not an accurate e
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by sykick 7y ago
It is neither a big win nor a great improvement. At the time of need of essential goods/services price transparency is not as helpful as you make it seem. The American health system is so complex, has so many competing interests, and
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by sykick 7y ago
Yes, the inmates are at least partly responsible for the rules of the asylum. There's an answer to a question about the loneliness in pursuing mathematics on mathoverflow.net that says, paraphrasing, that one should only do mathematic
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by sykick 7y ago
You wrote: The point is simply that our debt levels aren’t that unmanageable,... The cost of living is important as this and income level determines the affordability of debt. Just comparing income level and debt level between the two co
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by sykick 7y ago
Public transportation is very bad in the U.S. Even in major cities. For the vast majority of people a car is a necessity in the U.S. Most Americans end up in debt to buy a car. Then there is insurance and the opportunity cost of the gove
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by sykick 7y ago
When making comparisons with Sweden or other countries the cost of healthcare, housing, food, and transportation should be taken into account. Healthcare and transportation costs are much higher in the U.S. I think too we also have a high
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by sykick 7y ago
Thank you. That’s very nice of you to say.
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by sykick 7y ago
I deduce from your post that you have very little experience in teaching people at the level of beginning algebra. And while one might know geometrically what a parabola is there is a lot one must know before dealing with parabolas algebr
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by sykick 7y ago
In elementary algebra students can do this for the most part: Evaluate x^2 + 2x + 4 for x = 3. Quite a few will struggle with: Evaluate x^2 + 2x + 4 for x = –3 Almost all will struggle with: Evaluate -x^2 - 2x + 4 for x = -3 I don't th
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by sykick 7y ago
Well for one thing the simple substitution you mention is a hard concept. They certainly will have a hard time with f(x-1) and introducing a new variable is a mental block at this stage. At my college we don’t introduce functions until th
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by sykick 7y ago
I doubt I can convince you. I’m just going by my experience teaching the topic. At the time students first learn solving such equations they have just been taught factoring and what it means to factor a trinomial. They know the product o
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by sykick 7y ago
I’ve taught elementary algebra for many years at a community college. The method described in the article is truly, in my opinion, very nice. I will be using this method from now on in elementary algebra. Students in elementary algebra d
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by sykick 7y ago
Having taught elementary algebra for many years at a community college I think your perception of what is complicated and easy are not correct. The method in the article is far easier for elementary algebra students than what you describe.
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by sykick 7y ago
I teach mathematics at a community college. This includes teaching a lot of elementary algebra courses. These are pre-college level math courses. In elementary algebra we introduce solving quadratic equations by factoring. In the next c