Introduction to Quadratic Theory (1 of 2: Why we care about quadratics)

[kiriakoz]

It's awesome because he cares enough to say WHY it's important, not just start teaching it without demonstrating the value.

[emilyscloset]

As someone looking to teach Maths, I think this is very powerful.
He invokes a curiosity and doesn't shy away from recognising the higher complexity without losing focus.
I thought mentioning quintics having no formula (via Galois theory) was a nice nod to put things in perspective.

[mwerensteijn]

You are able to explain everything in the simplest form that anyone can understand. Absolutely amazing teacher!

[AchtungBaby]

When discussing the cubic formula, I think it's important to mention that the two cube root terms only differ in the minus sign in front of the square root inside. When you take that into account, the formula isn't as complex as it first appears.

[alexatennyson]

He gives all the answers that hits my mind.

[olajumokealbert]

Best teacher ever, this guys are really lucky, wish my teacher's were like this.

[LafferStyle]

That's quite interesting. Back when I was in high school they were trying to figure out whether a quartic formula existed (or could exist). So either the field of mathematics moves really fast in two years, or my teacher wasn't THAT up to date with things.

[hypericacea]

Thank you, I couldn't find this video with the prompt "quadratic theory" but found it instead with the prompt "quadratic philosophy"

[mir.]

Wait those students are yr11??? When I was yr11 we where learning stupid scatter and box and whisker graphs!!!

[duckyoutube]

My question isnt why but rather how someone came up with the formula.

I understand how to use the formula, its very easy, but how did someone play with the logic until they came to the conclusion that x = +-b(b^2-4ac/2a ?

Ive been playing with polynomials all day to try to find it myself but i cant wrap my head around it.

[AlexandrBorschchev]

How do you derive the formula for quadratic, im thinking atleast 90% of studenrs dont know where they came from

[dhyeypatel]

Show 'e' in some power!!! Challenge to greatest teacher LOL

[Manav]

No too basic.. but a good teacher.. sure will have more interesting stuff on other topics.

[ganerdene]

i have a question if equation (quadratic linear etc) equal to zero what that means¿ 0 representing origin¿

[gwendeseminatr]

Challange: only watch the first ten secounds and imagine he is talking about your life

[OriginalSuschi]

Well there are many things which behave like parabulas, so it surely is important.

[cj__]

Remember when we all still learning our times tables

[pragathids]

I wish I had 'THIS' amazing teacher for mathematics.

[eternal]

um im in year 8 and im learning this :/

[maskedmarvyl]

He really doesn't explain anything about quadratic functions in this video.