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The more I read up on Common Core the more annoyed I get. Someone decided to take simple math and make it untenable. Perhaps the idea is to keep parents from being able to help their kids with their homework? This is the best example I could find. Maybe someone can explain why this is better, but it seems ridiculous.

Obviously, you're a mathist, and you don't care about the CHILDREN!

I can't even figure out what that is trying to say...

 Ahtman wrote:
The more I read up on Common Core the more annoyed I get. Someone decided to take simple math and make it untenable. Perhaps the idea is to keep parents from being able to help their kids with their homework? This is the best example I could find. Maybe someone can explain why this is better, but it seems ridiculous.

WHAT THE IS THAT?

This explains why the Boy makes bank tutoring people in math.

Seen this before Done this before

Its "Reverse Math"

thinking

KK

Its giving a new dimension into thinking.
Before it was back and forward
Now add Lateral
Now add depth and height

I don't like it.

I literally cannot figure out how that graphic is determining an outcome.

I ran out of fingers and my back is too stiff from doing an evenings painting to take off my socks just yet.
Also, I have no idea what that thing is, I'll stick to colour theory.

That's a ridiculous way of doing it...
Why even teach that?

And I thought 'Pi" was confusing…..

How would you do this with 27+18?

 Frazzled wrote:
How would you do this with 27+18?

I was always taught to round up….

Da fuq?

o.O

Seriously... wut?

If I find out my boyz are in a common core school... I'm moving them.

 Frazzled wrote:
How would you do this with 27+18?

27+8 then 35 +10.

I am terrible at math so I don't know a good way to teach kids math, but I know that's not a good way.

I am not defending common core or demeaning it I know what the intent is suppose to be. I think there is a better way to teach kids to think "outside the box"

I don't get it.

That makes me want to break down and weep - why is this a thing?!?

 Ouze wrote:


I am terrible at math so I don't know a good way to teach kids math, but I know that's not a good way.

Exactly. I've spent about 5 minutes sitting here trying to figure out how this makes sense.

How am I supposed to turn around to my five year old, and make it clear for him?

 whembly wrote:
Da fuq?

o.O

Seriously... wut?

If I find out my boyz are in a common core school... I'm moving them.

There was a period of time when they hit multicolumn math and were taught this werid cubist method that no one could figure out.
We showed the Boy how you're SUPPOSED to do it and he got instantly and taught everyone else how to do it. They got As. Those he didn't teach got C-Fs.

Is that why I can't count the number of Nazi flags?

Make a 10. Just make a 10....... it's been infront of me this whole time.

In one year I'll be back with my newly published motivational book: How making a 10 saved my life.

 d-usa wrote:
Is that why I can't count the number of Nazi flags?

O.o



Need more "common core" math to figure that one out.

 Frazzled wrote:
How would you do this with 27+18?

27 + 18 ; Start
27 + ( 10 + 8 ) ; Separate the tens and ones
27 + ( 10 + (3 + 5 )) ; We want a number that we can add to the “7” in the first number to get a nice round one
27 + ( 10 + 3 + 5 ) ; Just dropping some parenthesis here.
27 + ( 3 + 10 + 5 ) ; Shuffling numbers around. Addition is transitive, we are allowed.
( 27 + 3 ) + ( 10 + 5 ) ; Now we have that 3 over with the 7. See how happy it is?
30 + 15 ; Hey! we’re actually adding numbers.
45 ; End

It’s a little screwed up, but does work. I basically use a system like this when I’m adding numbers in my head. When The Boy came home with math homework using this stuff (he’s in second grade) it took me a bit to figure out what they were talking about. But I’m no stranger to having math hurt my brain, so I think I figured out what they are up to. Can’t say I agree with it, but hey, not everyone thinks the same way.

 Nevelon wrote:

 Frazzled wrote:
How would you do this with 27+18?

27 + 18 ; Start
27 + ( 10 + 8 ) ; Separate the tens and ones
27 + ( 10 + (3 + 5 )) ; We want a number that we can add to the “7” in the first number to get a nice round one
27 + ( 10 + 3 + 5 ) ; Just dropping some parenthesis here.
27 + ( 3 + 10 + 5 ) ; Shuffling numbers around. Addition is transitive, we are allowed.
( 27 + 3 ) + ( 10 + 5 ) ; Now we have that 3 over with the 7. See how happy it is?
30 + 15 ; Hey! we’re actually adding numbers.
45 ; End

It’s a little screwed up, but does work. I basically use a system like this when I’m adding numbers in my head. When The Boy came home with math homework using this stuff (he’s in second grade) it took me a bit to figure out what they were talking about. But I’m no stranger to having math hurt my brain, so I think I figured out what they are up to. Can’t say I agree with it, but hey, not everyone thinks the same way.

Woah... I get it now.

Weird ass way to add math.

I guess I'm a traditionalist then.

 Nevelon wrote:

 Frazzled wrote:
How would you do this with 27+18?

27 + 18 ; Start
27 + ( 10 + 8 ) ; Separate the tens and ones
27 + ( 10 + (3 + 5 )) ; We want a number that we can add to the “7” in the first number to get a nice round one
27 + ( 10 + 3 + 5 ) ; Just dropping some parenthesis here.
27 + ( 3 + 10 + 5 ) ; Shuffling numbers around. Addition is transitive, we are allowed.
( 27 + 3 ) + ( 10 + 5 ) ; Now we have that 3 over with the 7. See how happy it is?
30 + 15 ; Hey! we’re actually adding numbers.
45 ; End

It’s a little screwed up, but does work. I basically use a system like this when I’m adding numbers in my head. When The Boy came home with math homework using this stuff (he’s in second grade) it took me a bit to figure out what they were talking about. But I’m no stranger to having math hurt my brain, so I think I figured out what they are up to. Can’t say I agree with it, but hey, not everyone thinks the same way.

Could you have done that without already knowing the answer? Thats a serious question.

Oh dear... A math thread. I am out of here!

I like the rack and stack method.

1. 7 + 8 is 15

27
+18
------
5

2. Carry the one:
1
27
+18
------
5

3. 1+2+1=4

27
+18
------
45

 Frazzled wrote:

 Nevelon wrote:

 Frazzled wrote:
How would you do this with 27+18?

27 + 18 ; Start
27 + ( 10 + 8 ) ; Separate the tens and ones
27 + ( 10 + (3 + 5 )) ; We want a number that we can add to the “7” in the first number to get a nice round one
27 + ( 10 + 3 + 5 ) ; Just dropping some parenthesis here.
27 + ( 3 + 10 + 5 ) ; Shuffling numbers around. Addition is transitive, we are allowed.
( 27 + 3 ) + ( 10 + 5 ) ; Now we have that 3 over with the 7. See how happy it is?
30 + 15 ; Hey! we’re actually adding numbers.
45 ; End

It’s a little screwed up, but does work. I basically use a system like this when I’m adding numbers in my head. When The Boy came home with math homework using this stuff (he’s in second grade) it took me a bit to figure out what they were talking about. But I’m no stranger to having math hurt my brain, so I think I figured out what they are up to. Can’t say I agree with it, but hey, not everyone thinks the same way.

Could you have done that without already knowing the answer? Thats a serious question.

Can't answer for Nevelon, but I use this system all the time and it's not a problem. It's probably habitual, I've done it this way as long as I can remember doing maths, so I'm used to it.

Why is it so hard to just do 26 + 17 = 26 + 10 + 7 = 36 + 7 = 43? Then again I'm borderline Rain Man status when it comes to simple arithmetic so I don't understand at all how people have difficulty with it.