Today's lesson (10.01.12)

Hi class! Today we should have continued with the working group but yesterday we carry very badly and Mario was angered. Mario has explained the three cases there is for solving second degree equations.
First case:
For example: 4$x^{2}$-36=0
We have to clear x^2:
4$x^{2}$=0+36
$x^{2}$=36/4
$x^{2}$=9
And the value of x^2 is:
√(9 )=±3
Second case:
For example: 7$x^{2}$-6x=0
We remove the common factor:
x(7x-6)=0
The two solutions are:
x=0 x=6/7
Third case:
For example: 8$x^{2}$=0
The only solution for this type of equations is: 0.



And finally we have done an exercise with many steps to solve a quadratic equation, but Mario has told us that there is a formula that helps us to avoid having to do all these steps.
x=(-b±√(b^2-4ac))/2a
The homework is learn this formula. I hope you have understood it.

HOW TO DO A RUBIK CUBIK

Hellow, i know is a bit late but i didn't watch that video since today, is incredible...

The badger video give me the idea to make the video, incredibly.

Rubik Session

First, I’d like to congrat you all for succeeding on the Rubik’s Challenge! Most of you have earned 0.3 extra points for your second evaluation final score! :D

If you want to download the pictures I took, click here.

I really hope that the Rubik’s Cube deal managed to open your mind wide and wake all your neurons up for this term ;) Let them shout, like the US nº1 hit from the day I was born.

 Shout (Tears for Fears)

Would you like to know the nº1 hit from the day you were born? Follow this link and you’ll find out… maybe some of you were born under Britney Spears’ sign XDD MUAHAHA...

http://en.wikipedia.org/wiki/List_of_number-one_hits_%28United_States%29

Be seeing you!!

PS: Allo, the psycho-killer-poker-face you show in one of the pictures is hilarious XD

Dj Santonio & Dj Miprimo

Hi class!!!! Here you are the new video created by the boss, the unique, Tristán.I hope you like it!! I include a video of me making the rubik´s cube!!!!!!!!!!

Merry Christmas + Solutions

I hope you'll enjoy your Rubik's holidays!! :D

We'll meet again in 5/2 weeks. Meanwhile, don't let yourselves be hunted by badgers XD

Christmas Homework - Day 1 Solutions
I'm sorry for this delay. The  incident wasn't due to myself forgetting about uploading the solutions, but to
a very important fact: I'm in Ponferrada and it was absolutely impossible to get an internet connection until today ;P

If you want to check your day 1 exercises, click here.


Christmas Homework - Day 2 Solutions
We've reached Christmas' equator!! Day 2 solutions are followed by a classic anthem from my high school times XD
If you want to check your day 2 exercises, click here.

 Ecuador by Sash!!

Christmas Homework - Day 3 Solutions

Time is running out guys!!

If you want to check your day 3 exercises, click here.

PS: if your own solutions don't match with that ones in the pdf, and you're completely sure you've done the exercises in their right way, post a comment to this entry ;) Also if you have any doubt, you should share it with us :D

Be seeing you!!!!

Polynomials Exam Results

Hi guys! I'm attaching here your last exam marks. You succeeded on scoring a high arithmetic mean, but some of you did actually low your usual results.... Maybe you felt too confindent and you didn't study enough at home... on Monday you'd better tell me!

Anyway, congratulations to those who managed to improve your mark ;D

AB01	6,8
AB02	7,4
AB03	6,5
AB04	5,4
AB05	8,2
AB06	7,6
AB07	7,1
AB08	10,5
AB09	4,1
AB10	8
AB11	8,2
AB12	7,8
AB13	3
AB14	10,3
AB15	4,2
AB16	7,6
AB17	8,6
AB18	6,9
AB19	6,1
AB20	10,2
AB21	6,8
AB22	5,1
AB23	6,1
AB24	9
AB25	8,3

Good afternoon-night, class(;
Sorry because I didn't do the post before, but I couldn't do it.

Today we have started a new unit. Unit 4; the equiations.
We saw that an equality is composed of two algebraic expressions united by the equal sign and they can be True, or False; and Identities, or Equations.
Then, we saw the parts of an equation:

2x-3=3x+2

The first part; "2x-3" is the first member and it's composed by two terms, "2x" and "-3".

The second part; "3x+2" is the second member and of course it's composed by two other terms; "3x" and "+2".

If the equations have the same solution, they are called "equivalent equation".

Then, we copied some of the rules of the equivalent equations, but we didn't have time to finish that part.

Luckly, Mario didn't send us homework(;