for all you math wizzards out there, I need help!!!!!!

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Messages 41 - 60 of total 130 in this topic << First  |  < Previous  |  Show All  |  Next >  |  Last >>
Gary Carpenter

climber
SF Bay Area
Feb 22, 2014 - 07:07pm PT
+1 for Kahn Academy
whitemeat

Big Wall climber
San Luis Obispo, CA
Topic Author's Reply - Feb 22, 2014 - 07:15pm PT
alegebra 2

I am in 11 grade...

thanks for all the responses dudes! thanks for the life lessons too micronut :)
Guangzhou

Trad climber
Asia, Indonesia, East Java
Feb 22, 2014 - 07:30pm PT
Wow, so different.We cover that in third and fourth quarter of Algebra I at my school. 8th graders.

With that said, my students don't climb, so you're one up on them fr sure.

Eman
Cragman

Trad climber
June Lake, California....via the Damascus Road
Feb 22, 2014 - 07:41pm PT
I remember telling all of my teachers that I hated math....didn't want to learn math.....and that I would NEVER enter a career that required me to use math.

I ended up in a career that has me using extensive amounts and numerous forms of math ever minute of every day. Running my own business requires it constantly.

Learn it....you're gonna need it.
Guangzhou

Trad climber
Asia, Indonesia, East Java
Feb 22, 2014 - 07:54pm PT
I didn't like school in general and hatted math even more. Avoided the subject most of my life. Like you, when I started my own business, I ended up using it a lot When I sold the business, I was pretty comfortable with numbers in general.

My first middle school teaching position, they needed a teacher to teach an Algebra classes, so I added it to my teaching schedule. That was 11 years ago, now, I teach math, occasionally something else.

Over the years, I've had the opportunity to observe a lot of math classes. I think one reason students don't do well or enjoy the subject is that Math is often assigned and not taught.

I was being observed by a math teacher once, a peer to peer evaluation. She was very traditional with lots of Skill and Drill. When we spoke afterward, she explained to me that my Math class was "To much like Science." My student did hands on activities, collected data instead of reading it from a text, and talked among themselves about the material. She meant it as a criticism, I took it as compliment.

Get students excited about the classroom, they will start to enjoy the subject matter, once they are excited about the classroom and enjoy the subject matter, you can really begin teaching.
overwatch

climber
Feb 22, 2014 - 09:11pm PT
You have to be trolling with the spelling
wbw

Trad climber
'cross the great divide
Feb 22, 2014 - 09:15pm PT
For number 36: any 3rd degree polynomial function with real zeros of a,b and c will have 3 distinct linear factors of (x-a), (x-b) and (x-c).

So for your problem with given zeros of -3,0 and 5 the equation you are looking for is
f(x) = (x - -3)(x - 0)(x - 5), which is equivalent to f(x) = x(x + 3)(x - 5). It will be a polynomial with rational coefficients and a leading coefficient of 1. I'd multiply the rest out for you, but I generally charge $55/hr. for tutoring this stuff when I'm not teaching it in one of my Algebra 2 Advanced or Advanced Precalculus classes. (Never ceases to amaze me that parents will lay that kind of $$ down without a second thought, when their kid could get on Khan Academy, do a simple search and get excellent instruction for free.)

Personally, I admire your resourcefulness getting on the Taco for this, and cannot imagine what it must be like to sit in high school math classes having experienced the Shield. Good luck with that. Had I climbed El Cap before graduating high school, I never would have finished.

If you do choose to throw out the test and go climbing, I recommend that you not become one of those Valley lifer egomaniacs that thinks all Americans are stupid.
Clint Cummins

Trad climber
SF Bay area, CA
Feb 22, 2014 - 10:00pm PT
But, Americans are stupid. Often. It's part of what makes life entertaining.
Not always, though. That's why it's a joke.
T Hocking

Trad climber
Redding, Ca
Feb 22, 2014 - 10:57pm PT
https://www.khanacademy.org/
+2
Check it out MEAT!
Lorenzo

Trad climber
Oregon
Feb 22, 2014 - 11:24pm PT
Yer gonna Die!
micronut

Trad climber
Fresno/Clovis, ca
Feb 22, 2014 - 11:50pm PT
This thread needs a bit of climbing stoke!

Micronut considers the length &#40;l/s&#41;of slack in the rope and ho...
Micronut considers the length (l/s)of slack in the rope and how it will affect the vector(v) and kinetic energy(ke) involved in a potential swing off the pitch approaching Crescent Ledge on Fairview's Regular Route.
Credit: micronut
Mungeclimber

Trad climber
Nothing creative to say
Feb 23, 2014 - 02:16am PT
not sure why, but I like this topic.

can't remember anything from Trig, Statistics, or later algebra stuff in HS. But I like thinking about math in concepts.

Just need tricks to make the solving go faster.
whitemeat

Big Wall climber
San Luis Obispo, CA
Topic Author's Reply - Feb 23, 2014 - 10:04am PT
that kahn accademy thing is great! just checked it out, those videos teach better then the teacher!!!!!!! thanks dudes!!!!!

thanks for the climbing stoke scott!!!!!
Forrest B.

Trad climber
Appalacia
Feb 23, 2014 - 11:04am PT
11th grade, Algebra II? You should be in Trig @ a minimum.

Math is easy for you? Doesn't look that way.

This has to be a troll! If not, I have no respect for you, and no hope for your future.

This is basic math. Apply yourself, and do your own work. Lazy f-r
Norwegian

Trad climber
dancin on the tip of god's middle finger
Feb 23, 2014 - 11:08am PT
math skills earn you mad salary,
a dope lifestyle,
chicks galore,
solutions to everything,
a fever for emotionometry,
and a mastery of sic.

now get to work boy,
art only pacifies angst,
and there ain't no tangible reward in the serene industries.
mouse from merced

Trad climber
The finger of fate, my friends, is fickle.
Feb 23, 2014 - 11:32am PT
If a gallon of water weighs 8.34 lbs.,
and you paid twelve cents per gallon to buy Evian in the largest size,
did you get a deal?

Who can you pay to haul that tonnage that you estimate you might need
to climb the Aquarian solo at comparable wages?

We all know about Chongo. He usually works for free, when he works.

He taught himself to do the math.

You can be like Chongo, a voice in the wilderness, write books and sit back and enjoy "the life of Reilley," a builder who knows all the angles, or like norwegian, who knows all the angels.

Trip on that, young man. Then get to studying--you'll be more likely to become a John Gill of the Walls.

The possibilities are infinite.

Elcapinyoazz

Social climber
Joshua Tree
Feb 23, 2014 - 01:17pm PT
Unless you become a math teacher, or physicist or something, you'll forget all this sh#t in 10 years anyway. Doesn't mean you don't need to learn it.

Math was easily my best subject, I'm a working civil engineer, and these days I couldn't have completed your test without a book to consult. Couldn't even remember the quadratic formula without minutes of thinking about it and writing it down to see if it looked right.

One college professor told us "the best thing you'll learn in school is HOW TO LEARN". He was exactly right. In college there's no hand holding, you sink or swim, and quickly learn how to teach yourself from whatever resources available..fellow students in study groups, books, and these days online resources like Khan (you whipper snappers don't realize how lucky you are to have these modern tools). If I needed to use those math concepts today, I'd pull down a book, reacquaint myself in a couple minutes and do it. That only works if you learned and understood it the first time around.

So before you blow off school to live in the dirt, think about this:

Would you rather have a pimped out sportsmobile, hot wife, not think twice about dropping cash at restaurants concerts or gear, and be able to retire from work, while living in cool cities and taking trips to climb in the alps, himalaya, patagonia...or would you rather be digging ditches at 50 yo, crippled from a lifetime of bullshit manual labor and bad nutrition, with 3 rotten teeth left in your head, having climbed the same 50 routes over and over because you're too poor to go anywhere and your partners are tired of supporting your bum ass, and have not been laid since you were 25?

Educate yourself, don't blow it off because it isn't fun. Whether it's for white collar desk work, or craftsman/trades work, or anything else, apply yourself and get GOOD at what you do. Find something that you like and become the best you can be. And not one of these bs things everyone thinks is the ticket to happiness...photography, guiding...that ain't it, too many people competing for too few $$$ means sh#t wages and a bare few who rise above that, much like trying to be an NBA player...millions try, 50 make it.

People - employers, potential mentors, etc will judge you on your past record, including school. They will judge you on your ability to speak and write, not whether you can stand in aiders and play with widgets...a look at the climbing bum contingent will quickly show you any moron with 3 brain cells can climb up some etriers and swill bad malt liquor.


Now pardon me, it's time to go clip some bolts.
SCseagoat

Trad climber
Santa Cruz
Feb 23, 2014 - 01:27pm PT
Unless you become a math teacher, or physicist or something, you'll forget all this sh#t in 10 years anyway. Doesn't mean you don't need to learn it.

It's not about the math...it's about training the mind to think about problem solving and looking at multiple variables and figuring out how to solve a problem...regardless if it has math or not. When "we have a problem Houston" ... And all that "stuff" was thrown on the table, I would suggest that the type of thinking and discipline of mindful problem solving did a great deal to get them home....it wasn't raw math but the ability to engage in mindful and rigorous problem solving. Mathematical and scientific thinking are excellent for training the mind to see things in a problem solving mode. Even if you don't go into those disciplines the mind training is invaluable. If you forget the "arithmetic" the ability to mindfully problem solve across multiple contexts and situations will remain. Especially if you ever have to self rescue.

Susan
Malemute

Ice climber
great white north
Feb 23, 2014 - 02:31pm PT
That only works if you learned and understood it the first time around.
+1

Do you have a crystal ball so you can say you will NEVER need any math?
No.

Even carpenters need some.

Or are you just going to dig ditches?
Wait a minute, even ditch diggers have to avoid buried lines.
So they have to figure out where those lines are.

I recently had to find the minima & maxima of a curve that is the sum of cosines.
I don't use math enough that I could just write down the derivative.
But I have enough of a background that I knew that I could figure it out.
And I did, although I had to work it out step by step.
mouse from merced

Trad climber
The finger of fate, my friends, is fickle.
Feb 23, 2014 - 02:48pm PT
Plus a thousand for Elcapinyoazz!

"the best thing you'll learn in school is HOW TO LEARN".

But seeing the comma OUTSIDE the frown and the smile means that, automatically, post-haste, you gotta spend the night in the (figurative) Taco walk-in/lock-in or give up those points.

Live & learn, or learn to live, as I do.

Sponge-Bob Bobcat from Merced

Honest Abe, the autodidact with tact intact, quaintly studying his new...
Honest Abe, the autodidact with tact intact, quaintly studying his new guide to sharpening his wit. Splitter knows...
Credit: mouse from merced
Fail to plan, plan to fail, in math, or anything except good old Secks. That should involve "spontaneity."

O! the magic of cell division
It oft requires no decision.

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