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Everything posted by Perry
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Paranoid H1N1 Mist Question
Perry replied to happyWImom's topic in General Education Discussion Board
No, it's not true. There is individual variation on how long immunity lasts, and possibly some variation between different strains of vaccine. In general, immunity lasts longer after live vaccines compared with inactivated vaccines. But immunity can last many years. (In some people it may wear off sooner, of course). In one of the studies I did, we looked at immunity in people who had the 1976 swine flu vaccine, and many of them still had protective levels of antibodies 30 years later. That was an inactivated, not a live, vaccine. -
Yes, I'm very familiar with EM, Trailblazers, TERC, etc. It's what got me started homeschooling in the first place. I LOATHE those reform curricula. Unfortunately, there isn't much out there on the high school texts. They don't seem quite as bad as the elementary curricula, but there is way too much self teaching involved. I went to a parent meeting about T-math for accelerated 6th graders, and we were told that the district believed very strongly that the students learned better if the kids taught themselves. Five minutes later they were trying to dissuade the parents from having their kids take T-math, because "most of them don't do very well. Although if your kids do okay, you'll see their scores go through the roof." Okay. Through the roof? These kids only qualified if their ITBS math scores were over the 95%ile, so they couldn't go up much higher. And if most of the kids (who were already the high achievers) aren't doing well, maybe it's because they aren't being TAUGHT! Okay, off my soapbox.
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I may have to bring dd home from ps and need to find something quickly for Geometry. I'm looking at these: Jacob's (have it, don't think my dd will like it) CD (love Dana Moseley, not impressed with the text) TT (like the samples online, but have heard very negative things about the algebra series) LOF Holt 1991/92 VT I'm leaning towards TT, but am wondering if it's rigorous enough. Dd will likely go into some type of science field. I'd be interested in your impressions of any of these curricula, and if you have suggestions for others, I'd like those too. TIA.
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My dd (12) returned to ps for 7th grade after 5 years of hs. She's a good student and excels at math. We did Foerster's Algebra 1 last year and she did fine, so we put her in Geometry for 7th grade. She is getting an A/A- on everything, and her teacher says she's one of the best students in her class. But she's miserable. She hates it and says she's struggling and doesn't really understand what's going on. They apparently don't teach; the kids read a new section each day and then do the first set of questions on their own. The next day, the teacher "goes over" any questions the kids have, then they do the second set of questions from that section, plus the first set of questions from the next section. So there is never a formal presentation of the material. It sounds very haphazard and disjointed, and I would have hated that type of math class. She wants to dual enroll and take math at home again. I'm concerned that the problem is her age, that she just isn't ready for geometry, and a new curriculum won't really help the situation. I'm trying to figure out if other kids have the same issues with this curriculum as I'm going to discuss the situation with the teacher at some point. __________________
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My dd (12) returned to ps for 7th grade after 5 years of hs. She's a good student and excels at math. We did Foerster's Algebra 1 last year and she did fine, so we put her in Geometry for 7th grade. She is getting an A/A- on everything, and her teacher says she's one of the best students in her class. But she's miserable. She hates it and says she's struggling and doesn't really understand what's going on. They apparently don't teach; the kids read a new section each day and then do the first set of questions on their own. The next day, the teacher "goes over" any questions the kids have, then they do the second set of questions from that section, plus the first set of questions from the next section. So there is never a formal presentation of the material. It sounds very haphazard and disjointed, and I would have hated that type of math class. She wants to dual enroll and take math at home again. I'm concerned that the problem is her age, that she just isn't ready for geometry, and a new curriculum won't really help the situation. I'm trying to figure out if other kids have the same issues with this curriculum as I'm going to discuss the situation with the teacher at some point.
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A Little Flu Shot Humor
Perry replied to Gretchen in NJ's topic in General Education Discussion Board
The mercury in fish is methyl mercury. The mercury in thimerosal is ethyl mercury. They're different. NIH Sort of like the difference between ethyl alcohol (in liquor), vs. methyl alcohol (methanol) which can cause death even in small amounts. -
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I agree with Meanest Mom's comments on CA-125. Several years ago there was some discussion of a "universal" screening test for cancer, that was supposed to find *any* cancer in the body. They claimed to have 95% sensitivity and 95% specificity, meaning that if cancer was present, they'd have a correct positive test 95% of the time (sensitivity) and if cancer was NOT present, they would have a correct negative test 95% of the time (specificity). Those numbers sound pretty good on the surface, but it turns out they really aren't good at all, in this situation. What you really need to know is the Positive Predictive Value (PPV) for the test, and this depends on the prevalence of the disease. Here's a definition of PPV: IOW, how likely it is that the positive test is correct. Let's crunch some numbers. Estimated 1,500,000 new cases of cancer diagnosed in 2009. US population about 300,000,000 So we will use 1,500,000/300,000,000= 0.005, or 1/200 as a rough estimate of prevalence of cancer. This is for all age groups- it would be much lower in kids and much higher in olders. The formula for PPV is this: sensitivity =95% specificity=95% prevalence=.005 Plugging those number in, we get That's 8.8%! That means only about 9% of people with a positive screening test will turn out to have cancer. If you are one of those 9%, well good for you, it might, or might not, help to have caught it early. But if you are one of the other 91%, you will be going through an enormous battery of expensive, invasive, not risk-free tests to try to find out where your (nonexistent) cancer is. Mammography, colonoscopy, endoscopy, CAT scans, MRIs, bloodwork etc. And they won't find anything, because it isn't there, but you don't know that, and you'll be worried sick about it. (Not you personally, the generic you, of course. ) Inevitably, there will be serious adverse outcomes related to those tests. So if someone tries to tell you they have a magic lab test that will find any cancer in your body, my advice is to run far away.
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The freebies are outrageous. But if you accept them you are just as culpable as the pharmaceutical companies. Lots of doctors and clinics have policies not to accept anything but samples from drug reps.
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A committed vs. a happy marriage.
Perry replied to Tabrett's topic in General Education Discussion Board
Me. They eventually did divorce, but only after many years of dysfunctional hell. I would much rather they had divorced and got it over with sooner. I do believe that many people have unrealistic expectations, aren't willing to put enough effort into keeping their marriage healthy, and bail too quickly. -
An Excel question, please, for any EXCEL gurus??
Perry replied to OLG's topic in General Education Discussion Board
Try this: Highlight the desired print area, then File->Print area->Set print area Or try this: Edit->GoTo->Special->Select Last Cell->OK This tells you where the end of your data is. If it's beyond where you want it, select all the extra stuff you want to get rid of and click delete. -
My turn for a would you eat this ?
Perry replied to homeschoolin'mygirls's topic in General Education Discussion Board
Here's a table of bacterial food borne pathogens. -
My turn for a would you eat this ?
Perry replied to homeschoolin'mygirls's topic in General Education Discussion Board
Staph aureus can produce an enterotoxin called staph enterotoxin B (SEB) which is heat stable. Certain serotypes of E. coli can produce several different enterotoxins, some of which are heat stable and some are heat labile. There is a list of the actual toxins here, although the names don't mean anything to me. The E. coli O157:H7 that has caused several well known dangerous outbreaks is killed by cooking, so that one isn't a concern. Bacillus cereus also produces a heat stable toxin, but it's usually associated with starchy foods like rice, and not usually meats. I don't know what percentage of meats are contaminated with any of these organisms. Certainly it isn't present in all meat. I believe that small farm meats are less likely to be contaminated than meat that comes from a factory farm, but I can't back that up with data. It's all about how much risk someone is willing to accept. I'm not much of a risk taker.:D -
My turn for a would you eat this ?
Perry replied to homeschoolin'mygirls's topic in General Education Discussion Board
Some pathogens (staph aureus, e. coli) can produce heat stable toxins. While the pathogens would be killed by high temperatures, if present, they've been sitting there for hours producing toxins that won't be affected by cooking. I'd toss. -
An Excel question, please, for any EXCEL gurus??
Perry replied to OLG's topic in General Education Discussion Board
When you click on "print" you should have an option in that box that says "print range". You can set it to print Page 1 of 1. -
My turn for a would you eat this ?
Perry replied to homeschoolin'mygirls's topic in General Education Discussion Board
No. I'd toss. -
Interesting - Dr. claims she got H1N1 twice
Perry replied to hornblower's topic in General Education Discussion Board
Probably, yes. -
Interesting - Dr. claims she got H1N1 twice
Perry replied to hornblower's topic in General Education Discussion Board
I wonder if they dosed up with Tylenol and/or ibuprofen during their illness. A recent study showed that taking Tylenol at the time of vaccination resulted in a decreased immune response. It may hold true for natural infection as well. (Lancet abstract here) -
Which dr. would you believe?
Perry replied to creekmom's topic in General Education Discussion Board
Just want to point out that doctors make a heck of a lot more money taking care of influenza patients than they do on vaccines. -
Do you have a taupe paint color that you love?
Perry replied to Perry's topic in General Education Discussion Board
Haven't decided yet. I've only had time to go to the Benjamin Moore store so far, and I couldn't find either Ladyfinger or Elephant Gray. I'm going to the other BM store tomorrow, maybe I can find them there. And I'll go to Lowe's tomorrow also. I got a couple samples from BM but both were too dark: Alexandria beige and Kingsport gray.