Sólidos Platónicos

Sólidos Platónicos

De Максим Пе - Trabajo propio, CC BY-SA 4.0, Enlace

AQUI tenéis toda la información necesaria para conocer estos particulares cuerpos geométricos.

Teorema de Pitágoras ( con Geogebra)

Teorema de Pitágoras (con Geogebra)

Aquí tenéis una demostración del teorema de Pitágoras hecha en

Para ver el applet pincha AQUÍ

Equations 1º and 2º ESO

Paris is well worth a mass.

When his cousin Enrique III, the last of the Valois dynasty, named him his successor, Enrique IV already knew that the path to the throne was paved with thorns.

The religious wars had divided not only France, but all of Europe, and although he had been baptized catholic, he was educated in the Calvinist doctrine, and suffered in his own flesh. He already remembered how, after spending four years reigning over France, he had to renounce his faith and embrace the catholic doctrine again so that Saint Liga of Paris would accept him as king.

The disputes of power against the catholic Felipe II continued years later and, while he read the letter that his secretary had brought him, Enrique IV was astonished by the talent of Francois Viete to interpret the ciphered messages that the Spanish used to communicate within themselves.

He closed his eyes and tried to remember some notion of algebra that Viete had taught him. He remembered that he used the consonants, B, C, D…, to supplement the known quantities, and the vowels, A, E, I…, the unknown.

(c) Translation by Braden Williams.

AICLE UNIT LINEAR EQUATIONS (1º ESO)

AICLE UNIT EQUATION. CAN YOU GUESS? (2º ESO)

Numeric Proportionality

Numeric Proportionality

When green is red

The 26-year-old young man, John Dalton, was comforted by his older brother, Jonathan, while they took a walk through the English city of Kendal.

-John, don’t take it so seriously. I’m sure that mom didn’t want to offend you.

John didn’t seem very convinced and looked in disbelief at the garment that he had given to his mother, and that she returned it made him visibly upset.

-I don’t understand why she doesn’t like it, the clerk assured me that the cloth was of the highest quality.

-You know that mom is very religious and the color red… -answered his brother Jonathan.

-You didn’t realize it either -John objected and, while he threw the scarlet garment in the river, he began to think: Why couldn’t his brother and him distinguish the colors?

Two years later, in 1793, John Dalton published a work where he described a type of disorder the he himself suffered, known from then on as daltonism.

Dalton became famous, and is still known for his atomic theory, that plays a fundamental role in numeric proportionality.

For example, a water molecule has two hydrogen atoms and one oxygen atom. His theory affirms that, regardless of the amount of water, the quantity of hydrogen and oxygen atoms always has the same proportion (ratio).

Who's John Dalton?

Ratios and proportions

Algebra 1º and 2º ESO

BEFORE READING

What does Heraldy study?

Can you think of any elements that normally appear in coats of arms?

What can they mean?

Coat of Arms

Once upon a time, there was a knight in shining armour who was riding his beautiful black horse up the hill towards a castle. One of the castle guards was going to stop him to ask him his name, when the sergeant ordered him to let the knight in.

Olimpiada Matemática Thales

New page in this blog related with the "Olimpiada Matemática Thales  for the Second course of ESO.

You can try to solve differents problems HERE

2º ESO: Unit 14 Statistic

Here you have a video explaining the most important words about statistic...




And Information about Statistics Graphs...

Graphing ppt from Channa Comer

Calculator Widget

JUST FOR FUN!!

Between divine and human proportion.

A monk called Luca Pacioli wrote a book titled «The Divine Proportion» and asked Leonardo Da Vinci to illustrate it. When the artist finished all the drawings Luca examined them and said: «Your work is fantastic.» «Thank you father Pacioli » replied Leonardo. «Your book deserved that and more.» «I was right when I decided to ask you to illustrate my book because I knew you would love the theme of proportions. You showed me the sketch of the Vitruvian Man you drew and I was really impressed » said Pacioli.

Da Vinci explained that Vitruvio was a roman architect who had written about human proportions. These proportions are considered the canon of art, «Did you know that the distance from your elbow to your fingertips is a fifth of your height?» said Leonardo. «And the distance from your elbow to your armpit is an eighth of your height? And did you know that the length of your hand is a tenth of your height?»

Proper and Improper Fractions

The four fours

Srinivasa Ramanujan was an Indian mathematician from the 20th century. He was called “ the friend of numbers.” He had a natural ability with numbers and was very famous in the scientific world for that reason. When he was a child, he invented a game to entertain his brothers while they were waiting at Madras train station.

There was a train with four coaches and a steam engine in front of them. Every coach had the number four on it and the steam engine had the number one.

In the Red

Fu Chang was a young man who lived in China a long time ago. He wanted to work for the government so he took an exam to get the job. He was sure he`d pass the exam because he was very good at writing literature and poetry.

During the Tang dynasty (618-907 AD) it was very difficult to get a post in the government but if you passed the exam you could earn a lot of money and have a higher social status.

What comes after Thursday? Thursday!!!

It was a very cold Christmas day of the year 1582 and Pope Gregory XIII was talking to Christopher Clavius, a Jesuist who was very upset at that moment:
«Oh, please, Your Holiness, let me explain the changes in the calendar to the people,» said Christoper.