Brendon_t Posted November 10, 2016 Report Share Posted November 10, 2016 What part of the quadratic equation is ELEMENTARY? My sixth grader just asked me for help with his math.. it looks like a bowl of alphabets got thrown up on paper. . ax2 + bx + c = 0.. huh? Elementary: of or pertaining to the most rudimentary aspect of a subject. I guess this is the time you realize, my kid is smarter than me in something... Thank heaven for google.. Quote Link to comment Share on other sites More sharing options...
JosephThomas Posted November 10, 2016 Report Share Posted November 10, 2016 https://www.khanacademy.org/math/algebra/quadratics/solving-quadratics-using-the-quadratic-formula/a/quadratic-formula-explained-article 1 Quote Link to comment Share on other sites More sharing options...
Klappco Posted November 10, 2016 Report Share Posted November 10, 2016 My fifth graders work on that. Of course I teach the gifted kids. Sent from my iPad using Tapatalk 2 Quote Link to comment Share on other sites More sharing options...
mat60 Posted November 10, 2016 Report Share Posted November 10, 2016 Thats not nice at all. Quote Link to comment Share on other sites More sharing options...
wtnhighlander Posted November 10, 2016 Report Share Posted November 10, 2016 And by seventh grade, they will have totally forgotten this, and never hear of it again. 2 Quote Link to comment Share on other sites More sharing options...
Chestnut Posted November 10, 2016 Report Share Posted November 10, 2016 All it is is the area under a line with slope "a*2" that's been shifted up "b" units. The constant C is left over because working the other way the derivative of any constant is 0 there for at any point the area of an equation could have some constant that was lost. The fact that it takes Calculus to explain it my answer would be nothing about the quadratic equation is elementary. I feel like this is a mean question that's partially a trick, it's like asking the angle of attack for your jointer knives. Who cares it cuts wood lets use it for that. Quote Link to comment Share on other sites More sharing options...
Eric. Posted November 10, 2016 Report Share Posted November 10, 2016 My FIRST GRADER brings home math that baffles me. Not that the problems themselves are difficult, but the way they're worded makes no sense. Things that I'd never even heard of...the "rule of doubles?" What the hell? Here's one... "Using the rule of doubles, which two numbers equals 18?" Uh, yeah I get what they're asking me, but how is a 6 year old supposed to understand that? She said not a single kid in the class got it right. Quote Link to comment Share on other sites More sharing options...
Popular Post Brendon_t Posted November 10, 2016 Author Popular Post Report Share Posted November 10, 2016 12 minutes ago, Eric. said: "Using the rule of doubles, which two numbers equals 18 The rule of doubles: at the point while drinking when you start seeing two, you must divide the attractiveness of any woman around by two. 6 Quote Link to comment Share on other sites More sharing options...
Woodenskye Posted November 10, 2016 Report Share Posted November 10, 2016 The methods used to teach these kids confuses me as well and math was always my strongest subject. My son comes home each day with a "new method or trick" to solve multiplication problems and only confuses himself. Quote Link to comment Share on other sites More sharing options...
Popular Post davewyo Posted November 10, 2016 Popular Post Report Share Posted November 10, 2016 I always thought the Rule of Doubles was a corollary to the Rule of Exponential Piss. The Rule of Exponential Piss states that as you decrease the time between drinking beers the time you have before needing to piss decreases exponentially. The Rule of Doubles therefore states that as you double your intake throughout the evening you will eventually spend twice the amount of time in the bathroom as you do drinking. Or something like that... 6 Quote Link to comment Share on other sites More sharing options...
Tpt life Posted November 10, 2016 Report Share Posted November 10, 2016 I see no question posted, just a blank format. The question could be lots of things at lots of levels. (Day job) Quote Link to comment Share on other sites More sharing options...
chrisphr Posted November 13, 2016 Report Share Posted November 13, 2016 Math major here, no recollection of the rule of doubles or exponential piss, but based the definitions above I apparently didn't have enough fun in college. Then again, few math majors do... Sent from my iPhone using Tapatalk 2 Quote Link to comment Share on other sites More sharing options...
Brendon_t Posted November 13, 2016 Author Report Share Posted November 13, 2016 On 11/10/2016 at 8:05 AM, C Shaffer said: I see no question posted, just a blank format. The question could be lots of things at lots of levels. (Day job) The intention wasn't to solve an equation. intention was more venting that I felt dumb that I couldn't help with math hw since it is far from my day job. Quote Link to comment Share on other sites More sharing options...
RichardA Posted November 13, 2016 Report Share Posted November 13, 2016 I read that Kahn Academy response/answer. and I think ....Huh? Half of 3 1/2 is 1 /34 cut to the waste side of the line! Quote Link to comment Share on other sites More sharing options...
Tpt life Posted November 13, 2016 Report Share Posted November 13, 2016 Full disclosure, I teach music. I tutor math because it is fun and follows concrete rules. I thrill at solving the puzzle challenges. It helps my career to be able to work in more than one subject area. I am not claiming that quadratics in elementary is wise. I am only saying that I know they are more and more pushing advanced concepts in front of students to do exploratory activities. Personally I did not do these things in elementary school and yet I do well enough. Quote Link to comment Share on other sites More sharing options...
wtnhighlander Posted November 14, 2016 Report Share Posted November 14, 2016 Any kid can solve quadratic equations. Just try using one to lock the parental controls on your tv, smart phone, or web browser. Boom, solved in no time. 1 Quote Link to comment Share on other sites More sharing options...
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