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re: Can Someone Explain How They Teach Math In Grade School These Days?
Posted on 1/2/18 at 4:41 pm to slackster
Posted on 1/2/18 at 4:41 pm to slackster
I respect what they are trying to do with this, but I would prefer someone who knows how to do it correctly, consistently, and reasonably quickly on paper to one that can do it almost instantaneously but haphazardly in his head. An appreciation of base 10 and these "quick" methods will come in a relatively short amount of time to anyone doing any amount of math anyway, but the key is systematizing the method to avoid errors.
0
Posted on 1/2/18 at 5:48 pm to OweO
It's mainly rounding numbers to make them manageable, while maintaining a separate tally of the small (also manageable) numbers you added or subtracted to get to aforementioned round number(s). Then settling the two sums.
It makes sense to me. It's the way I've done math in my head all my life.
It makes sense to me. It's the way I've done math in my head all my life.
This post was edited on 1/2/18 at 5:49 pm
Posted on 1/2/18 at 6:07 pm to OweO
Posted on 1/2/18 at 7:42 pm to OweO
19
+19
———
38
9+9 = 18
1+1 = 2
————-
38
+19
———
38
9+9 = 18
1+1 = 2
————-
38
Posted on 1/2/18 at 7:44 pm to OweO
It's a pain, I have a 5th grader so I deal with this mess daily.
Posted on 1/2/18 at 7:52 pm to BamaCoaster
quote:
The common core math states that you group numbers and it is supposed to make math easier. It teaches things that people who are good with numbers "just get".
Like, a poster above mentioned 20+20=40 40-2=38.
That is the way people who are "good with numbers" do math in their head. However, you cannot simply teach that. It won't work, and the subsequent "dumbing down of the American populous" will continue until we either get rid of the Dept of Education, or we get more local control of the schools.
Agree.
Other dumb thing about is that at some point you still have to do the arithmetic. If you don't know 4 + 3 = 7, Common Core won't help.
Posted on 1/2/18 at 8:06 pm to OweO
they break it up into more recognizeable numbers to make it easier to deal with. as a math nerd and someone whos working towards a degree to teach high school math i think its a great meahod
Posted on 1/2/18 at 8:11 pm to Speedy G
quote:better to have them learning how to show their work now when its easy before they get into upper level courses adn have no idea how to do it. That was my biggest struggle in college math classes. I never really learned how to show my work because I always just did it in my head when the work was easier and it bit me in the arse hard
Introducing various methods is fine, but basic arithmetic should not be so laborious.
Posted on 1/2/18 at 8:16 pm to BamaCoaster
quote:
However, you cannot simply teach that. It won't work, and the subsequent "dumbing down of the American populous" will continue until we either get rid of the Dept of Education, or we get more local control of the schools.
I disagree. People hardly even give it a chance.
Posted on 1/2/18 at 8:21 pm to starsandstripes
quote:
Of course, it's taught by teachers - the group most responsible for making America dumber
quote:
Army Fan
quote:
starsandstripes
LEt me guess, you were a little shite in school that had no interest in listening to authority that turned to the army because you couldnt do anything else with yourself?
thank you for your service but shut up about shite you dont know about. yes theres shitty teachers out there, just like every profession, but most want to help kids learn and make a difference.
Posted on 1/2/18 at 9:09 pm to High C
quote:
Yeah, that's great for kids who started with common core from the beginning. It's not so great for kids who were in, say, 4th grade when the state switched to common core. They got a big mindfrick. Just like parents who learned math the traditional way and are now trying to help their kids do it the common core way.
Oh well. If they can't handle that switch its not like they were destined for anything spectacular anyway.
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