RECREATIONAL MATHEMATICS

 These sites contain math games, logic puzzles, magic squares and math videos for students who need a fun way to practice math facts.
http://www.mathplayground.com/
http://www.coolmath-games.com/
http://mathworld.wolfram.com/MagicSquare.html

In this website we can explore the universe through Hubble’s eye and see the most spectacular images of the cosmos.
http://hubblesite.org/


A fractal is "a rough or fragmented geometric shape that can be split into parts, each of which is (at least approximately) a reduced-size copy of the whole, a property called self-similarity. A collection of fractals in this nice site.
http://www.enchgallery.com/fractals/fracthumbs.htm

MATHEMATICS IS FUN

In this page you can find a lot of games, exercises and a dictionary for practicing mathematics
http://www.mathsisfun.com/

EQUATIONS FOR 1º AND 2º ESO

An introduction to simple linear equations in this URL: http://www.cut-the-knot.org/arithmetic/WProblem.shtml

How to solve equations in these videos

To be solved, many problems must be translated into equations, here are some recommended steeps http://www.algebralab.org/lessons/lesson.aspx?file=Algebra_OneVariableWritingEquations.xml

There are examples to solve.

Solve these equations

ACTIVITIES FOR S.W.S.E.S.N.

Here we have a page with free lesson plans, activity ideas andresources for students with special education and support needs. You can download many materials made with powerpoint or pdf files.

http://www.primaryresources.co.uk/maths/maths.htm

PYTHAGOREAN THEOREM

Pythagoras theorem is the relation among the hypotenuse and the other two sides of a right triangle:

In any right triangle, the area of the square whose side is the hypotenuse (the side opposite the right angle) is equal to the sum of the areas of the squares whose sides are the two legs (the two sides that meet at a right angle).

• For 1º, 2º and 3º ESO click HERE to find  proofs , examples, questions and activities about this theorem.
• Trigonometry functions and other triangle topics for 4º ESO and 1º Bach in this WEBSITE.

These links show many proofs of Pythagorean Theorem:

1. http://www.cut-the-knot.org/pythagoras/index.shtml
2. http://www.math.ubc.ca/~cass/euclid/java/html/pythagoras.html

ACTIVITY FOR 1º BACH

In the Famous Curves Index, URL: http://www-history.mcs.st-andrews.ac.uk/Curves/Curves.html click on the name :

1. Circle
2. Ellipse
3. Hyperbola
4. Parabola

Write in your notebook the cartesian equation of these curves. 

To experiment interactively with these curves, click on "If your browser can handle JAVA code, click HERE" to see the changes on the curves if changes the equations coefficients. Write in your notebook the changes you see.

ACTIVITY FOR 3º ESO

In this URL http://www-history.mcs.st-and.ac.uk/Indexes/Greeks.html

1. Read in the list of Greek Mathematicians Pythagoras and Euclid biographies and write in your notebook the most important contributions to the Mathematics.
2. Read the article " The teaching of mathematics in Ancient Greece" and write the differences with te teaching in the present.

PYTHAGORAS