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Topic:
Third grade homework problem....
This thread has 26 replies. Displaying posts 16 through 27.
Post 16 made on Tuesday February 18, 2014 at 07:19
Mario
Loyal Member
Joined:
Posts:
November 2006
5,681
On February 18, 2014 at 04:14, Ernie Gilman said...
So what was the actual complete text of the problem?

Fins will have to provide you with the exact text as my daughter returned her folder binder to school Monday morning.

I've looked online for the exact problem but couldn't find it.
Here is the closest example:
[Link: swvgs.us]
OP | Post 17 made on Tuesday February 18, 2014 at 08:20
Fins
Elite Member
Joined:
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June 2007
11,627
On February 18, 2014 at 04:14, Ernie Gilman said...
So what was the actual complete text of the problem?

I believe it was worded just as I posted it
Civil War reenactment is LARPing for people with no imagination.

Post 18 made on Tuesday February 18, 2014 at 09:00
thecynic315
Senior Member
Joined:
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August 2008
1,001
On February 17, 2014 at 23:33, Fins said...
I know how to round off. But what I'm undecided on is if they would expect a 3rd grader to think advanced enough to consider 0 a hundreds place.

You do algebra in Kindergarten.

2+_=4, 3-_ = 1, 9+_=10.

That's all the simplest algebra ever, but we don't teach it as algebra.
Post 19 made on Tuesday February 18, 2014 at 09:39
Lowhz
Senior Member
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April 2012
1,168
On February 17, 2014 at 23:33, Fins said...
I know how to round off. But what I'm undecided on is if they would expect a 3rd grader to think advanced enough to consider 0 a hundreds place.

What if the number was 10,000,014? Would it still be difficult to round down to the nearest 100?
OP | Post 20 made on Tuesday February 18, 2014 at 10:02
Fins
Elite Member
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Posts:
June 2007
11,627
On February 18, 2014 at 09:39, Lowhz said...
What if the number was 10,000,014? Would it still be difficult to round down to the nearest 100?

For a third grader, probably
Civil War reenactment is LARPing for people with no imagination.

Post 21 made on Tuesday February 18, 2014 at 10:49
Barry Gordon
Founding Member
Joined:
Posts:
August 2001
2,157
As long as we are discussing problems for 4youngsters, lets not forget oldsters.

> Mental test for Seniors
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> This test is to ascertain your mental state now. If you get one right
> you are doing ok, if you get none right you better go for counseling.
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> 1. How do you put a giraffe into a refrigerator?
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> 2 How do you put an elephant into a refrigerator?
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> the elephant and close the door. This tests your ability to think
> through the repercussions of your previous actions..
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> Correct Answer : The Elephant. The elephant is in the refrigerator.
> You just put him in there. This tests your memory.
> Okay, even if you did not answer the first three questions correctly,
> you still have one more chance to show your true abilities.
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> Correct Answer:? You jump into the river and swim across. Haven't you
> been listening? All the crocodiles are attending the Animal
> Conference. This tests whether you learn quickly from your mistakes.
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> According to Anderson Consulting Worldwide, around 90% of the Retirees
> they tested got all questions wrong, but many preschoolers got several
> correct answers. Anderson Consulting says this conclusively proves the
> theory that most Retirees do not have the brains of a four-year-old.
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Post 22 made on Tuesday February 18, 2014 at 12:01
Ernie Gilman
Yes, That Ernie!
Joined:
Posts:
December 2001
30,104
On February 18, 2014 at 08:20, Fins said...
I believe it was worded just as I posted it

Well, okay... so where did you post it? It wasn't here!

You posted:

On February 17, 2014 at 20:09, Fins said...
Round the following numbers to the nearest hundred:

14

Then you posted:

On February 17, 2014 at 20:52, Fins said...
There were two numbers to the problem. The first was 346. She rounded that to 300. Then the other one is 14. So how would you round it to the nearest 100?

The first post implies there are more than one number. The second post says there were two numbers and says what she did. You do not quote the problem as stated.
A good answer is easier with a clear question giving the make and model of everything.
"The biggest problem in communication is the illusion that it has taken place." -- G. “Bernie” Shaw
OP | Post 23 made on Tuesday February 18, 2014 at 21:56
Fins
Elite Member
Joined:
Posts:
June 2007
11,627
On February 18, 2014 at 09:00, thecynic315 said...
You do algebra in Kindergarten.

2+_=4, 3-_ = 1, 9+_=10.

That's all the simplest algebra ever, but we don't teach it as algebra.

No kindergarten is doing that kind of math. 2nd and third grade are, but not kindergarten.
Civil War reenactment is LARPing for people with no imagination.

OP | Post 24 made on Tuesday February 18, 2014 at 21:58
Fins
Elite Member
Joined:
Posts:
June 2007
11,627
Ernie, the question was

Round the following numbers to the nearest hundred:

346 _____ 14 ______

The debate is over 14. If you need more information to comprehend this question, I'll see if I can have the special ed teacher contact you.
Civil War reenactment is LARPing for people with no imagination.

Post 25 made on Tuesday February 18, 2014 at 22:08
fcwilt
Senior Member
Joined:
Posts:
September 2003
1,283
That test for seniors? Serious?

Badly flawed questions - too many assumptions being made.
Regards, Frederick C. Wilt
Post 26 made on Wednesday February 19, 2014 at 11:46
cjoneill
Select Member
Joined:
Posts:
December 2002
2,174
On February 18, 2014 at 00:40, Ernie Gilman said...
The leading zeroes concept might be WAY too much detail for a nine-year old to realize. It might, however, be part of the lesson or a previous lesson. You need to ask about that.

Did your kid ever learn that 1 = 01 = 001? And actually absorb it? Like I say, it's a tough concept.

They learned it here at that age...

On February 18, 2014 at 21:56, Fins said...
No kindergarten is doing that kind of math. 2nd and third grade are, but not kindergarten.

I was teaching my kids algebra well before kindergarten. If you give me one shell, I'll give you 2 peanuts. How many peanuts will I give you if you give me two shells?

CJ
I'm not a pro
Post 27 made on Wednesday February 19, 2014 at 12:16
Ernie Gilman
Yes, That Ernie!
Joined:
Posts:
December 2001
30,104
On February 18, 2014 at 21:58, Fins said...
Ernie, the question was

Round the following numbers to the nearest hundred:

346 _____ 14 ______

The debate is over 14. If you need more information to comprehend this question, I'll see if I can have the special ed teacher contact you.

Getting math right requires being very specific about how it's written. It did not take a special ed teacher to tell me that the problem you posed,

Round the following numbers to the nearest hundred:

14

could not possibly have been the problem. You didn't notice that you wrote numbers and then supplied only one number?  How the hell does one answer an obviously impossible question?

Then you wrote
There were two numbers to the problem. The first was 346. She rounded that to 300. Then the other one is 14. So how would you round it to the nearest 100?

But this is freakin' MATH and exactly how it's written matters a lot. You chide me for not getting it, but what you wrote was unclear enough that Mario claimed it was not about rounding off but about estimating.  And he's pretty sharp.

Hell, a good math teacher would have written the problem (it's not a question, it's a problem) as
Round the following numbers to the nearest hundred:

346 _____

14 ______

or even better

Round the following numbers to the nearest hundred:

1. 346 _____

2. 14 ______

We deal here every day with people who have trouble solving problems with A/V gear, such as the recent request for a device to convert optical to CAT5. Well, you can't. Light does not convert to electricity and plastic does not convert to copper. The actual problem is "What device can convert an optical digital signal to a balanced wired digital signal?" Stating it clearly and completely points to the answer, which is to look into how the signals are sent, and convert their transmission method from one style to another.

You kid's math teacher is either mean or is too ignorant to realize that the problem as posed has too few parts to help point toward the answer.  The teacher should have given another one or two examples to get the mind into the groove of rounding off before tossing in the grenade.  That teacher did not use the problem to teach, but to eliminate!
A good answer is easier with a clear question giving the make and model of everything.
"The biggest problem in communication is the illusion that it has taken place." -- G. “Bernie” Shaw
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