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Frustrated Parent Posts Ridiculous Common Core Math Question that Teaches to Solve 7x5 in Six Steps
Pundit Press ^
| 10/22/14
| Aurelius
Posted on 10/22/2014 7:10:56 AM PDT by therightliveswithus
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To: therightliveswithus
Get the answer wrong, but get part of the calculation correct means you get partial credit. They are just making the stupid kids stupider.
2
posted on
10/22/2014 7:15:44 AM PDT
by
petercooper
(Liberalism = Amnesty = Open Borders = Illegal Immigration = Ebola = Obama)
To: petercooper
That’s nuts. Are students no longer able to multiply 7 by 10 and then divide by 2?
3
posted on
10/22/2014 7:18:21 AM PDT
by
posterchild
(It takes a politician to declare a settled science.)
To: therightliveswithus
While it seems ridiculous to do this with a simple problem like 7x5, it’s teaching techniques that can be used on much bigger numbers.
This is teaching the “distributive” property of mathematics.
Hopefully they already know 7x5 = 35.
4
posted on
10/22/2014 7:19:12 AM PDT
by
DannyTN
To: therightliveswithus
If you can’t determine 7 x 5 simply based on the times table, how can you know that the products of 21 and 14 are produced by 7 x 3 and 7 x 2?
To: therightliveswithus
So, they make you multiply 7 by 3, but you can’t just multiply 7 by 5?
That’s f’d up.
6
posted on
10/22/2014 7:19:59 AM PDT
by
dfwgator
(The "Fire Muschamp" tagline is back!)
To: therightliveswithus
At dinner the other evening our 14 year old grandson expressed his frustration with his 9th grade math teacher. She couldn’t even solve the linear equation she was attempting to teach her class. “How can I learn anything if she doesn’t know what she is doing?”
Fortunately his grandfather is a math whiz, though I doubt the solution will resemble the common core solution.
7
posted on
10/22/2014 7:20:20 AM PDT
by
Wiser now
(Socialism does not eliminate poverty, it guarantees it.)
To: therightliveswithus
Memorization and the use of the old domino cards seemed to work very well in the 50s-60s and before that time. Then again, teaching phonics and sentence diagramming in grade school also worked very well.
The lazy, lamebrain part of my generation who didn’t bother to learn the basics and are now administrators, education experts, and senior teachers made up these techniques because they did such a crap job with their students who are now teachers.
8
posted on
10/22/2014 7:20:36 AM PDT
by
RJS1950
(The democrats are the "enemies foreign and domestic" cited in the federal oath)
To: DannyTN
“Hopefully they already know 7x5 = 35.”
Actually they no longer memorize the multiplication table up to 12.
If they don’t ‘get’ it using the SIX STEPS (as opposed to just remembering that 7X5 = 35) then they’re screwed.
To: petercooper
...and adults who think this is rigorous and smart stuff, don’t have a clue.
10
posted on
10/22/2014 7:21:00 AM PDT
by
wita
To: therightliveswithus
It’s a demonstration of the distributive property. It might be more useful with larger numbers after the students have memorized the times tables.
11
posted on
10/22/2014 7:21:11 AM PDT
by
FoxInSocks
("Hope is not a course of action." -- M. O'Neal, USMC)
To: therightliveswithus
To: therightliveswithus
Does it occur to folks that the left is
INTENTIONALLY
trying to take the logic out of math and education in general?
Also, a side effect is that the parent absolutely CANNOT be involved in working with their kids on doing homework that involves these convoluted illogical processes.
ALSO INTENTIONAL.
13
posted on
10/22/2014 7:22:48 AM PDT
by
MrB
(The difference between a Humanist and a Satanist - the latter admits whom he's working for)
To: therightliveswithus
First, let me preface my comment by saying that I am a computer programmer by trade (for over 25 years) and that I use mathematics extensively on a daily basis.
On its face, this example looks silly and stupid.
However, if the intent was to introduce or reinforce the principles of Associative, Commutative or Distributive properties of Addition and Multiplication, the exercise has some merit. (these properties are among those that allow you to break up and re-write expressions in algebra, to help in solving for unknown values)
But, I would bet dollars to donuts that the "teacher" presenting this would return a blank, glassy-eyed stare if you were to ask them how this indeed illustrated any one of those properties, or to provide a practical example of their usage, reducing the value of the lesson significantly.
Back in my day (the Neolithic, as you young'uns refer to it) we first learned our multiplication tables to 10x10 by "brute force" memorization by the 3rd grade. That way, we did not have to "think" our way through basic calculations.
Later, once we could pop off the answer to 8x7 off the top of our head, more advanced mathematical concepts were introduced.
Just saying, that seemed to work then...
14
posted on
10/22/2014 7:24:18 AM PDT
by
Rebel_Ace
(My wife told me to update my tag, so I did.)
To: FoxInSocks
Memorization is the the “grammar” stage of the classical education.
Methinks they don’t want a lot of people growing up with the ability of the next two stages - logic and rhetoric.
It’s easier to bamboozle people who can’t think properly.
15
posted on
10/22/2014 7:24:31 AM PDT
by
MrB
(The difference between a Humanist and a Satanist - the latter admits whom he's working for)
To: DannyTN
The devil in the details. The easy way is not taught. In fact there is no time for stacking and memorization as the time is spent on the techniques beyond the age appropriate material.
16
posted on
10/22/2014 7:25:10 AM PDT
by
wita
To: petercooper
Partial credit, hmmmm...
I would recast the problem as:
(1+1+1+1+1+1+1) X (1+1+1+1+1) =
and this would result in
1X1 + 1X1 + etc.
and then because 1X1 = 1,
1+1+1+1+1+1+1+1+1+1+1+1+1+1, etc.
Then add up the 1s to get 35.
I should get about 200% when adding up all that partial credit.
17
posted on
10/22/2014 7:25:11 AM PDT
by
Scrambler Bob
(/s /s /s /s /s, my replies are "liberally" sprinkled with them behind every word and letter.!)
To: DannyTN
I see your shorter response beat my longer winded rant that basically said the same thing. Everyone says I blather on too much!
18
posted on
10/22/2014 7:26:51 AM PDT
by
Rebel_Ace
(My wife told me to update my tag, so I did.)
To: dfwgator
So, they make you multiply 7 by 3, but you cant just multiply 7 by 5? Thats fd up. It's like Microsoft got ahold of math and released Math 2.0
19
posted on
10/22/2014 7:27:09 AM PDT
by
Alex Murphy
("the defacto Leader of the FR Calvinist Protestant Brigades")
To: Rebel_Ace
You definitely need a strong foundation before learning the advanced concepts.
You can’t get algebra, fractions, geometry, etc
when you still have to stop and think and “work out” what 7X5 is.
20
posted on
10/22/2014 7:29:31 AM PDT
by
MrB
(The difference between a Humanist and a Satanist - the latter admits whom he's working for)
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