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Recent Posts
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That's child abuse. I believe in light, thoughtful, empirically supported testing as part of the educational experience, not as an intrusive element that displaces too much teaching and learning. I fully realize that the suggestions below are a bit radical, at least in some eyes. I think when a child is ready, that child should be tested, not during a hell week. Some will be ready early, some late. Tests should be finely diagnostic, suggesting what areas need work, and congratulating the child for areas they have mastered. The tests should not be noxious, but lightweight, fun, and short, short enough to be given when a child is ready to be tested on that unit, during a time they can book for testing, with a rotating proctor who is there many hours per week (perhaps teachers doing paperwork?). Instead of a 4 to 5 hour testing session, there would be short tests throughout the term when a student feels ready to be tested on that unit. Making the testing pleasant may be the most difficult part for the test's creators, and the teachers. So, as a student, I might get two weeks of instruction in quadratic equations, go through some supportive homework, and feel ready, so I would book myself into the "proctorium" to take the test. Up to about thirty students could be tested at once, as long as quiet is maintained, with students arriving when ready and leaving as they finish their tests. No test would be timed, or "speeded," as testing people say. These lightweight, but reliable and valid tests would have to be a complete and sufficient substitute for the current state-wide testing. There should be retesting to mastery (acknowledging that not every child will be able to achieve mastery in the system as it is). At the very least, the test-retest scores should not be averaged or otherwise combined, but only the last one on a given unit, for each student, should count on the grounds that it is what you can do at the end of the process that counts, and that presents the best snapshot of the learning that has occurred. Statistically equivalent forms of each test are remarkably easy to create. We had a testing procedure like this at SFSU, for statistics students. It worked very well for most, but not all. Different strokes. Thanks to retesting to mastery, the grades tended to be mostly A's and some Incompletes. Those getting A's were performing at the A level. The administration objected to so many A's being given, so the professor said, "Send any administrator down -- Hell, send them all down here and let them take our tests, and see if they get handed A's for their performance without getting our instruction. There is learning going on at the A level here!" Nobody took him up on it. What should be done with the final scores is controversial. There are many colorful and borderline obscene suggestions. One option, in part, is to look at change scores for each child, and consider improvement to be the goal, not some desired (and arbitrary?) level of performance. A more radical proposal would be, in addition to all of the above, to keep all test scores between the teachers and the students, and deny them to the administration, the district, and the state. Don't get fired. I like the quote in your signature: "The theory of quantum electrodynamics describes Nature as absurd from the point of view of common sense. And it agrees fully with experiment. So I hope you can accept Nature as she is--absurd." -- Richard P. Feynman. Hawking would agree, reinforcing the idea that experiments support quantum mechanics, even though "the math is dubious." He also points out that the "M" in M-theory may stand for "master," "mystery," or "miracle" and that it seems to be all three. -
Re-posting this from "Home Theater" forum. Why is the frequency response of the RP-150M better than the RP-450C ? Based on the cabinet size and number of woofers, it seems that the RP-450C should have the better/lower frequency response but it does not. Why ? RP-150M:
Frequency Response: 48-25kHz +/- 3dB
Dimensions: 14.57” (37.0 cm) x 7.67” (19.5 cm) x 10.67” (27.1 cm)
Volume: 1192 cubic-inch
Power: 75W/300W
Woofers: 1 x 5.25"
Enclosure Type: Bass Reflex RP-450C:
Frequency Response: 58-25kHz +/- 3dB
Dimensions: 6.81 “ (17.3 cm)x 31.13” (79.1 cm) x 14.51” (36.8 cm)
Volume: 3076 cubic-inch
Power: 150W/600W
Woofers: 4 x 5.25"
Enclosure Type: Bass Reflex Kris -
See I told you -
Why is the frequency response of the RP-150M better than the RP-450C ? Based on the cabinet size and number of woofers, it seems that the RP-450C should have the better/lower frequency response but it does not. Why ? RP-150M: Frequency Response: 48-25kHz +/- 3dB
Dimensions: 14.57” (37.0 cm) x 7.67” (19.5 cm) x 10.67” (27.1 cm)
Volume: 1192 cubic-inch
Power: 75W/300W
Woofers: 1 x 5.25"
Enclosure Type: Bass Reflex RP-450C:
Frequency Response: 58-25kHz +/- 3dB
Dimensions: 6.81 “ (17.3 cm)x 31.13” (79.1 cm) x 14.51” (36.8 cm)
Volume: 3076 cubic-inch
Power: 150W/600W
Woofers: 4 x 5.25"
Enclosure Type: Bass Reflex Kris -
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By John Chi-town · Posted
PM Sent. Regards, John -
By windashine · Posted
1. Historical Perspective of media - (in my own words) … phase 1 - for cave dwellings, cave painting, art, existence, make better tool's, round wheel's, more people, disagreements between people, use the wind to power sail's, bow's and arrow's, rule's and law's, morse code translators, newspapers, inventions, electricity, television, speakers, an era of relief and excitement, nice black model T's, big tanks and bomb's, civilized record players, bigger concerts, avocado colored refrigerators, dos, punch card's, windows 3.1, icq, dial up modem's, exit phase 1, over and out.... -
It comes with a remote, that you use to control the colors and other settings. I actually prefer leaving the white LED on when watching TV, heck, I now leave them on 27/7 m. It makes everything look “crisper” for some reason. Here is what I ordered: https://www.amazon.com/gp/aw/d/B0788Z13K2?psc=1&ref=yo_pop_mb_pd_title Sent from my iPhone using Tapatalk -
I've seen others use that kind of backlighting. How do you control the colors? Is there a practical use for the lights, ie makes the TV look better, easier on the eyes, etc, or is the lighting purely for effect? -
By mangofirst · Posted
No wonder she won an Oscar for this! That was quite a monologue. -
Yep, like a K43, as I discovered. But for those who want some really great drivers. AE are tops. Expensive but worth it.
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