Quadratic Formula Song

[stratego]

Most of us here are past the eighth grade, so I assume that most here have taken Algebra. When you learned the quadratic formula, did your teacher teach it to you as a song?

 

[stormbind]

No! That's just nuts, sorry

 

[Yom]

Absolutely not. It's easy to memorize. X = (-b +- sqrt.(b^2 -4ac))/2a

 

[Aphex_Twin]

Here it is taught by using an extra variable, delta. It's easier to memorise and neat to tell max/min coords of the parabola.

delta=b^2-4ac
x12 = (-b +- sqrt(delta))/2a

max/min = (-b/2a; -delta/4a)

 

[nonconformist]

What the smeg? I do algebra, and I never learned this. Guessing is all the funner.

 

[Rout]

Teach us the song!!!

 

[capslock]

I know the song.

Negative B, negative B, plus or minus the square root, plus or minus the square root,
B squared minus 4 AC, B squared minus 4 AC, over 2 A, over 2 A.

It is sung to the tune of ???? (a famous song, but I don't remember, I will figure it out later and post it then)

I was actually just singing this song while solving a z-transform problem for HW.

 

[Cuivienen]

In 7th grade I learned the quadratic formula via a song. It wasn't really a song, though, just the equation put to music.

 

[Perfection]

No song for us, but we did learn that a parabola is the path taken by a clown being shot out of a cannon.

 

[toh6wy]

I learned it to a song!

(to the tune of none other than... um... Pop Goes the Weasel, that's it.)

X equals negative b
Plus or minus the square root
of b squared minus four a c
all over 2 a!

 

[Chukchi Husky]

I just had to learn the formula. In England, you don't need to learn it until A level Maths (16+).

 

[-0blivion-]

I just had to learn the formula. In England, you don't need to learn it until A level Maths (16+).

I'm doing GCSE, and it is in my practice papers so far.

 

[Chukchi Husky]

You don't need to learn it for GCSE, it is given for you (unless it's changed since i done my GCSEs a year ago).

 

[-0blivion-]

Oh, yeah, it is on the front of the papers on the sheet. But everyone in our school has to learn it so when they see it they can use it, and know when to put it to any use.

 

[Chukchi Husky]

But you don't have to memorise it. In AS you have to memorise it.

 

[SeleucusNicator]

I didn't have it taught to me as a song, but the teacher pointed out that it could be sung to the tunes of "Pop Goes the Weasel" and "Yankee Doodle".

I once sang the "Pop Goes the Weasel" version in Chemistry class for extra credit; apparently, the Chem teacher, who also taught Algebra and Geometry (obviously not my Algebra class, but a different one) and had no idea the song existed.

 

[stratego]

Teach us the song!!!

Ok, it's sung to the tune of Jingle Bell. I'll put the part of the Jingle Bell song that correspond to the QF Song in parentheses.

X equal (Jingle Bell)
Negative B (Jingle Bell)
plus or minus radical (Jingle all the way ['radical' is said fast])
b square minus 4ac (Oh, what fun it is to ride in a...)
all over 2 A!!! (one horse open sled, hey)

 

[nonconformist]

I just had to learn the formula. In England, you don't need to learn it until A level Maths (16+).

OOOOh, great thundering typhoons.