Alright we had a math test today in the number theory. I lost %10 on these questions because I "did" them wrong.

Solve for the missing value;

5 to the power of 2 x 5 to the power of __ = 5 to the power of 5

So I put my answer as 5^2 x 5^ = 5^5 then my answer was 5^3. Then this supply teacher is like "NO YOU DID NOT PUT THE RIGHT ANSWERM THE ANSWER IS 3!". Then my friend and I said "Well when we marked our worksheets earlier we did an equation like this and you said it was fine!". After that shes like "Your lucky I gave you 1/10 on these!". We just left.

But Yoni, cant you just write the base with the exponant?

[quote]So I put my answer as 5 to the power of 3 for my missing exponant.[/quote]

Basically the way you wrote it is:

5 to the power of 2 x 5 to the power of 5^3 = 5 to the power of 5

That's like 5 to the power of 5 to the power of 3, the teacher is correct you are wrong, the answer is "3" just 3.

Then why on all of our homework when we rewrite the answer we always get it right? Why does it change on a test?

Probably when you were putting in an answer for your homework, the question was:

[quote]5 to the power of 2 x _____ = 5 to the power of 5
[/quote]

to which you'd answer 5^3, making it:

[quote]5 to the power of 2 x 5 to the power of 3 = 5 to the power of 5
[/quote]

while for your test, your answer was:

[quote]
5 to the power of 2 x 5 to the power of 125 = 5 to the power of 5
[/quote]

which is quite obviously wrong...

It's very important to look at exactly how a question is phrased, and what you're supposed to answer.

I agree with your teacher, but she should have taken off points if you did the same in your homework.

What's a supply teacher?

[quote author=Yoni link=board=36;threadid=6973;start=0#msg62076 date=1085624633]
I agree with your teacher, but she should have taken off points if you did the same in your homework.

What's a supply teacher?
[/quote]

When your teacher is sick or just away you have a replacement.

I'm not sure of the specifics, but I think supply teachers get the teacher's paycheck for the class when the teacher is not there. It's generally a teacher that went through teaching school but didn't go into full time teaching, or a retired teacher.

Supply Teachers usually mean you can arse about in class and then when they shout at you you laugh at them.

Ah, a substitute teacher. Umm, and she grades your tests?!

And on the original post, that's not number theory. It's algebra.

Ill scan up my math book and show you that it even says the number theory.

[quote author=Mitosis link=board=36;threadid=6973;start=0#msg62181 date=1085689269]
Ill scan up my math book and show you that it even says the number theory.
[/quote]
You're going to argue with Yoni about math? Why even bother :)

[quote author=Mitosis link=board=36;threadid=6973;start=0#msg62181 date=1085689269]
Ill scan up my math book and show you that it even says the number theory.
[/quote]And it's correct because it's written in the book? Who's the author?

[quote author=Yoni link=board=36;threadid=6973;start=0#msg62154 date=1085679666]
Ah, a substitute teacher. Umm, and she grades your tests?!

And on the original post, that's not number theory. It's algebra.
[/quote]

From what I know, a "supply" teacher and a substitute teacher aren't the exact same thing. Subs will usually fill in for a day or two if a teacher is sick or had something brief to take care of; a supply teacher will fill in for extended periods of time such as surgery, maternity leave, etc., where considerably more material needs to be covered over a certain time period.

BTW, number theory is part of Algebra and Finite Mathematics. Not all places may refer to the same concepts or practices in the same way. It doesn't mean either naming convention is wrong. :)

[quote author=Yoni link=board=36;threadid=6973;start=0#msg62193 date=1085691311]
[quote author=Mitosis link=board=36;threadid=6973;start=0#msg62181 date=1085689269]
Ill scan up my math book and show you that it even says the number theory.
[/quote]And it's correct because it's written in the book? Who's the author?
[/quote]

O.o, didnt mean it like "You are wrong!". Ill just show you that it says that, I'm not going to contradict Yoni in math.

[quote author=Raven link=board=36;threadid=6973;start=0#msg62204 date=1085694748]
From what I know, a "supply" teacher and a substitute teacher aren't the exact same thing. Subs will usually fill in for a day or two if a teacher is sick or had something brief to take care of; a supply teacher will fill in for extended periods of time such as surgery, maternity leave, etc., where considerably more material needs to be covered over a certain time period.
[/quote]
Ah ok, that clears it up.

[quote author=Raven link=board=36;threadid=6973;start=0#msg62204 date=1085694748]
BTW, number theory is part of Algebra and Finite Mathematics. Not all places may refer to the same concepts or practices in the same way. It doesn't mean either naming convention is wrong. :)
[/quote]
I strongly disagree. Algebra and Number Theory are very separate topics. They connect with each other (what two branches of mathematics don't?), but the concepts, ideas and goals behind each are different.

Well what do you know. My real teacher came back on Friday and said that he would give us the marks for those 7 questions! So I guess you can put them either way?

What you need to do is understand what you're doing and how to follow rules.

If they ask you to find the "missing number", and the question is

5^2 * 5^ _____ = 5^5

Then the only acceptable answer is 3.