Topic 'Chinese Multiplication Explained' in forum '56k Lookout! (broadband heavy)' - dslreports.com

Re: Chinese Multiplication Explained

Thu, 05 Nov 2009 09:44:30 EDT

Brauckmiller posted : This is why God invented the calculator! :)

Re: Chinese Multiplication Explained

Fri, 30 Oct 2009 19:02:54 EDT

61999674 posted : This "new math" is something no one has been able to explain to me, I believe most over the age of 30 or so uses the same algorithm to do basic math problems.
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Re: Chinese Multiplication Explained

Wed, 28 Oct 2009 17:47:17 EDT

Bobcat posted : I had trouble with algebra. They taught us to add or subtract the same term from each side. Well, that's two operations and increased the chance of making mistakes.

My former brother-in-law taught me to just move the term from one side to the other and flip the sign. Much easier and less likely to make a mistake. Algebra was easy once I learned that.

I showed it to everyone else in the class. I think the teacher was annoyed, but I bet we all did better.

Re: Chinese Multiplication Explained

Wed, 28 Oct 2009 17:35:28 EDT

dolphins posted : When my son was in high school I had a few disagreements with his teachers. In a few cases the teachers just were not qualified to teach in my opinion at least not advanced students. They tried to force their ideals on him instead of teaching.
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Re: Chinese Multiplication Explained

Wed, 28 Oct 2009 16:51:38 EDT

Bobcat posted : Bridgewater dropped Everyday Math this year after using it for a decade.
See - »www.mycentraljersey.com/apps/pbc···02270359

Re: Chinese Multiplication Explained

Wed, 28 Oct 2009 15:56:31 EDT

Jodokast96 posted : That won't be a problem here. No matter what the school teaches them, they will learn the right way from us.

Re: Chinese Multiplication Explained

Wed, 28 Oct 2009 15:11:56 EDT

Bobcat posted : Ahhh... I've heard bad things about Everyday Math. Like you have to later go and learn the right way to do math.

40 years ago, we had "the new math" which taught us a lousy way to divide. It had so many steps, it increased the chances of making mistakes and getting the wrong answer. (But you supposedly "understood" the process of division.)

When I started 6th grade, the first thing the teacher said was, "I don't know how they taught you to divide, but this is the way we're going to do it," and showed us the proper way to do division.
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Re: Chinese Multiplication Explained

Wed, 28 Oct 2009 14:57:42 EDT

Jodokast96 posted : 5th. It's called Everyday Math. The thinking is that since we read from left to right, we should also do math that way. We haven't spoken to any other teachers, but my daughter's is not happy with it herself. Just as bad, the district has had something like half a dozen workshops for parents to help the learn it. Like that's the kind of nonsense my tax dollars need to be paying for. In light of all that, it's time to start moving this up the line.

Re: Chinese Multiplication Explained

Wed, 28 Oct 2009 14:21:27 EDT

Bobcat posted : That's dumb. What grade? And do you know the name of the math program?

Re: Chinese Multiplication Explained

Wed, 28 Oct 2009 13:12:12 EDT

Jodokast96 posted : Here's what they're teaching my kids this year:


   256               300 x 70 = 21,000
  x 67            (ans will be in 10,000s)
---------
 12000               60 x 200
  3000               60 x 50
   360               60 x 6
  1400               7 x 200
   350               7 x 50
+   42               7 x 6
----------  
 17152

How the hell is that easier or faster than:

   256
   x67
----------
  1792
+15360
----------
 17152

Re: Chinese Multiplication Explained

Tue, 27 Oct 2009 14:32:34 EDT

Ripmaster posted : My first math lesson:

»www.youtube.com/watch?v=4xpTjMhd···=related

Say you're 40 and you're in love with a girl who is 10.
You're 4x older than she is, but you can't marry a 10 year old...
So you wait 5 years. Now you're 45 and she's 15.
You're only 3x as old as she is now...
Suppose you wait another 15 years: you're now 60 and she's 30.
It's not so bad as you're only twice as old as she is. The question is:
How long would you have to wait until you're the same age?
LOL!

Re: Chinese Multiplication Explained

Mon, 26 Oct 2009 21:45:07 EDT

dolphins posted : "Ripped off" is too strong of a term. It's most likely an old vaudeville routine?
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Re: Chinese Multiplication Explained

Mon, 26 Oct 2009 20:11:55 EDT

james posted : I wonder who ripped who off...

Re: Chinese Multiplication Explained

Mon, 26 Oct 2009 18:06:44 EDT

dolphins posted : Lou must have went to the same school as Ma & Pa kettle.

»www.youtube.com/watch?v=Ih4EXvo_DcE
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Re: Chinese Multiplication Explained

Mon, 26 Oct 2009 17:53:20 EDT

Willy posted :

said by dick white:

Nah, this is how you do it... :D

Finely one I understand.

Re: Chinese Multiplication Explained

Mon, 26 Oct 2009 17:06:53 EDT

dick white posted : Nah, this is how you do it... :D

»www.youtube.com/watch?v=rLprXHbn19I

dw

Re: Chinese Multiplication Explained

Sun, 25 Oct 2009 21:33:14 EDT

Bobcat posted : Like I'm going to do (2*1)+(6*7)+(5*3)+3 in my head.

Re: Chinese Multiplication Explained

Sun, 25 Oct 2009 20:09:29 EDT

RealoRc posted :

»www.youtube.com/watch?v=RxLhn4cY···=related

Another one in the related column. School would've been much easier if I had youtube videos instead of teachers.. LOL.

Re: Chinese Multiplication Explained

Sun, 25 Oct 2009 17:54:51 EDT

NightLinks posted : Thanks i'll remember it for when i go and take my GED exam.
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Re: Chinese Multiplication Explained

Sun, 25 Oct 2009 17:44:02 EDT

Bobcat posted : Cool!

Re: Chinese Multiplication Explained

Sun, 25 Oct 2009 17:27:47 EDT

Skand posted : That's pretty good, thanks!

Re: Chinese Multiplication Explained

Sun, 25 Oct 2009 16:41:07 EDT

Locutus65 posted : Well that seems like quite a PITA

Chinese Multiplication Explained

Sun, 25 Oct 2009 16:16:17 EDT

dolphins posted :

»www.youtube.com/watch?v=VBsC0p9mHPs