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Like there's more than one way to derive a correct answer, I get that, but what makes this poo poo better or more effective Also is there a reason for calling equations number sentences other than hip buzzword rebranding
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May 25, 2014 22:18
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JerryLee posted:Like there's more than one way to derive a correct answer, I get that, but what makes this poo poo better or more effective But but, if y was z all along what the gently caress man
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May 25, 2014 22:19
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Math should be taught as an art.
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May 25, 2014 22:20
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so it's add 26 + 17: add 4 to make the 26 into 30 and subtract the 4 from the 17 to get 13 and add it to 30 to get 43. vs add 26+17: add 20+10=30, then 6+7=13 add the 30 and 13 to get 43 the second way seems faster but that's how I was taught so maybe it doesn't really matter in the end. It seems like adding new numbers like 4 and 13 into the mix is inherently slower, but maybe it also gets kids to practice basic addition and subtraction more in their heads by adding a step? Moridin920 fucked around with this message at 22:25 on May 25, 2014 |
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May 25, 2014 22:21
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Moridin920 posted:i'm pretty sure it's faster to add 26 + 17 in your head by going 20+10 = 30 then plus 13 from the 6 and the 7 is 43 than introducing loving 4 and 13 into the mix. I get what they are doing but what is the reasoning behind that it seems like they are teaching people to think with roadblocks in the way or something. it's not supposed to be faster. this is used to illustrate the concept, it doesn't replace the old method of subtraction
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May 25, 2014 22:23
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Gulzin posted:Wrong.. Who actually remembers the properties names, though? I just picture stuff as piles of relationships. Like I'd write A*D with an arrow connecting A to D and turn it into (A*B)*D, turn that into (A*B)*(C*D) and with each split I'd split the arrows. Then I'd have four arrows between the following variable pairings: first, outer, inner and last. I typed all that out because that's how I'd like to see it taught. All I ever got was a depressed person telling us the FOIL method and if you didn't know how to straighten out one of the jumbled up homework problems enough to actually apply the FOIL method, you'd just have it repeated to you by said depressed person as though it were the thing itself to be understood. I was math retarded until I started visualizing it all, yet 'visualizing' runs contrary to how math was taught from algebra on. Tuxedo Catfish posted:i'm undecided, teaching people to use mental shortcuts and to understand underlying concepts is well and good but "math sentences" is a loving abomination Linear arrangements of words
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May 25, 2014 22:24
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Moridin920 posted:i'm pretty sure it's faster to add 26 + 17 in your head by going 20+10 = 30 then plus 13 from the 6 and the 7 is 43 than introducing loving 4 and 13 into the mix. I get what they are doing but what is the reasoning behind that it seems like they are teaching people to think with roadblocks in the way or something. You'd do even better by having typing lessons based on Dvorak keyboard layouts, enforcing reverse polish notation, and conducting classes in Esperanto. I'm insane. Put me on ignore.
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May 25, 2014 22:25
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I get what they're trying to accomplish but I'm not sure how effective their teaching methods actually are. The arbitrary replacement of old terms with new terms like "number sentences" is pretty dumb imo. I actually do add and multiply numbers in I guess a similar way to how they're trying to teach it so maybe it's not totally bad. I'm fresh out of high school and in my experience regular ed are mostly pretty bad at math and are really bad at understanding why certain things work in math so I can see where the motivation for this is coming from.
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May 25, 2014 22:25
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Concerned Citizen posted:it's not supposed to be faster. this is used to illustrate the concept, it doesn't replace the old method of subtraction
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May 25, 2014 22:26
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I guess they make it a little overcomplicated to me its just 26 + 17 = 30 + 13 = 43. They're kind of over explaining it.
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May 25, 2014 22:26
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seems like math class is getting harder, good thing I'm not children anymore I guess
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May 25, 2014 22:27
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gary oldmans diary posted:and illustrating the concept in remedial terms the student would rather forget because they get it now gets to be a teach to the test hallmark of math education that has nothing to do with common core though and everything to do with 'ed reformers' that insist we must test everything because education should be run like a $100m business, including usage of as many meaningless buzzwords as possible
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May 25, 2014 22:27
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Moridin920 posted:so it's 
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May 25, 2014 22:28
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May 25, 2014 22:28
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Teaching students the reason that math works does seem really important. I'm still going to get my phone out to calculate anything with more than two digits in it, but I certainly see the value of knowing why one plus one is two.
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May 25, 2014 22:29
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well yeah but some people have trouble with numbers in their heads DSauer posted:Teaching students the reason that math works does seem really important. I'm still going to get my phone out to calculate anything with more than two digits in it, but I certainly see the value of knowing why one plus one is two. it teaches you to not be a idiotfucker in general. like grasping mathematical concepts also helps you to understand basic logic and things like that, and plus just learning in general encourages neural efficiency in the brain so it'd be nice if people didn't just go 'gently caress it, they're not testing well, let's just throw out the hard poo poo and make the easy poo poo as easy as snapping blocks together!' in response to the education problem. Moridin920 fucked around with this message at 22:33 on May 25, 2014 |
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May 25, 2014 22:30
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DSauer posted:Teaching students the reason that math works does seem really important. I'm still going to get my phone out to calculate anything with more than two digits in it, but I certainly see the value of knowing why one plus one is two. lol blacknerry user spotted
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May 25, 2014 22:30
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Just loving teach them philosophy then
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May 25, 2014 22:31
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Moridin920 posted:well yeah but some people have trouble with numbers in their heads same if you put an irrational num,ber in the there you end up with illegal prime numbers, which is never explained
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May 25, 2014 22:31
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an illegal number exists in this world, after all the other ones aren't
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May 25, 2014 22:32
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https://www.youtube.com/watch?v=h2JWJYLNUq4
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May 25, 2014 22:32
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Previous Jesus posted:The arbitrary replacement of old terms with new terms like "number sentences" is pretty dumb imo. so students now get to learn that they arent just jaded -a lot of what theyre being taught really is meant to be uselessly obsolete and discarded but who ever think loving around teaching kids bullshit would ever backfire in any way im sure theyll love this it will help with calculus the old ways didnt work except for all that time that they did merica gonna reinvent math for you all 
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May 25, 2014 22:33
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Design Spots posted:lol blacknerry user spotted Now I want to know if the calculator app that comes with Android uses floating point numbers for calculating real numbers or if it uses a Decimal library instead. Are you just cheaping out and giving me approximate results Google or the real deal? Just what is one divide by three Google, huh?
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May 25, 2014 22:33
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take me know no questions asked, strip away the ugliness
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May 25, 2014 22:33
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just teach the kids stupid poo poo that way the test scores will go up and the yuppies shut up they don't need to know anything about anything except how to operate the factories the upper class kids get the good schools that teach them about carrying digits
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May 25, 2014 22:34
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Implement the Korean method of teaching.
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May 25, 2014 22:35
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wall streets gettinng a free pass on electronic trading that happens in the future, so youre hosed
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May 25, 2014 22:35
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Concerned Citizen posted:that has nothing to do with common core though and everything to do with 'ed reformers' that insist we must test everything because education should be run like a $100m business, including usage of as many meaningless buzzwords as possible
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May 25, 2014 22:35
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i miss everything about you
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May 25, 2014 22:35
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I really like geometry but the way you're taught it is loving retarded. Here's a bunch of formulas to remember but we're not going to tell you why they work!
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May 25, 2014 22:37
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Design Spots posted:America is hosed. I'll take 'preaching to the choir' for 200, Alex
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May 25, 2014 22:38
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Is this another thing where we should just be copying the way its done in Europe but won't because there's not enough profit in it and SOCIALISM!!!
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May 25, 2014 22:39
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dee eight posted:I'll take 'preaching to the choir' for 200, Alex This battle caused the region became known as the "Northmen" from which "Normandy" and "Normans" are derived.
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May 25, 2014 22:40
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Ingsoc Newspeak developed unironically by our idiot academic shitlords.
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May 25, 2014 22:43
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Animal-Mother posted:Ingsoc Newspeak developed unironically by our idiot academic shitlords.
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May 25, 2014 22:43
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comes along bort posted:kids should start with set theory to explain integration then add in all the algebra and high school arithmetic bullshit as necessary http://youtube.com/watch?feature=kp&v=Vetg7vWitTU icantfindaname fucked around with this message at 22:47 on May 25, 2014 |
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May 25, 2014 22:45
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DSauer posted:I really like geometry but the way you're taught it is loving retarded. Here's a bunch of formulas to remember but we're not going to tell you why they work! i mean it was a simple intro to that days lesson closely following the lesson plan laid out in the textbook but ...according to common core proponents and advocates of new-history-of-math-education that never happened because american standards have never been as high as that or as high as they are right now and thus we need common core to reach new peaks of excellence AMERICA #1
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May 25, 2014 22:47
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Design Spots posted:This battle caused the region became known as the "Northmen" from which "Normandy" and "Normans" are derived. What is muddle puddle tweetle poodle beetle noodle bottle paddle battle?
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May 25, 2014 22:47
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So somebody posted a paper by one of America's leading mathematicians giving specific examples of how the old new math was hosed, nobody in this thread appears to be in the field of pedagogical research, but half the posters here are confident that the old system was fine and that innumeracy in this country can be blamed on the stupidity of the youth today/Americans in general. Okay then.
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May 25, 2014 22:52
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IMO we should teach kids different ways to do simple math so that they can figure out which one works best and is quickest to do in their head.
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May 25, 2014 22:55
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