POLE VAULT

Pole vault is a sport in which an athlete jumps over an obstacle whit the help of a pole.Pole vault was a competitive sport in the mid-19th century. An olympic event for men since the firts modern games in 1896 ; a pole vault event for women was added for the 2000 olympics in Sydney, Australia

VIRIDIAN

Is a very stable and powerful cold green. It`s a Chornium oxide dilhydrate. Guignet of Paris patented the recipe of viridian. Its excellent permanence and ancient and modern.
This is an artificial colour.
It was discovered in 1838 and we use this color at the moment.
The name of Viridian comes from Latin "viridis" = green.

WATERCOLOR

Watercolor paints are pigments held together by a water soluble binder, along with additives and solvents.

The translucent quality of watercolor lends it self well to paintings that are atmospheric, nostalgic, and even otherworldly. The aqueous nature of watercolors accurately captures a sense of timelessness.

For this reason, watercolors are an excellent medium for depicting natural scenary, such as landscapes and seascapes as well as flowers, animals and portraits

To create gradations of color, new colors are mixed with the colors already on the palette to slightly change the hues. This way, all of the colors are related to each other. Because watercolors can be made wet again at any time — in the pan, on the palette, and in the painting — the pigments are re-workable. This is convenient if certain color families will be needed in the future. It makes sense to leave pre-mixed colors on the palette for future use, rather than wash them off (as you would with dried acrylic paint).

SOME VOCABULARY ABOUT LINES

Line: it can be define as  a dot in movement. It has position an direction in the space and one of its principal function consists in marking the shapes' outlines.
Zigzag lines and broken lines: they are formed by several fragments of straight lines with directions.
Wavy line: they are formed by several fragments of curved lines.
Curly lines: they hold more curves than wavy lines and show loops.

POINTILLISM

Is an artistic technique that involves painting a figure with small dots of colors located very near each other.
The works painted with pointillism give a sensation of vividness of colors, clarity, brilliance and tranquility.
The landscape is the most used them, is where you can reveal in more detail.
It began in 1884 with the Frenchman, George Pierre Seurat with a painting entitled "Sunday on the island of Grande Jatte"
Today, pointillism is a popular technique in art schools.
A person who paints with the art of the pointillism is George Pierre Seurat, he was the creator of pointillism.

THE SYMMETRY

The symmetry: it´s a equality of some shapes.Which some of their parts are reflections of others.
Reflection symmetry: it is shape´s quality which is formed by two sames halves.
Symmetry axis: it is the line which divides a shape into two symmetric halves.
Central symmetry: it´s the reflection of an object through a point called symmetry center.Every symmetric point is on the other side and at the same distance  from the center of symmetry.
Geometric symmetry: it is a kind of symmetry that have geometric rules.
Apparent symmetry:  it´s a symmetry that looks like a real symmetry, but there isn´t a real symmetry because there are little things that there are not the same in one of two halves.
Symmetry balance: it´s a way to organize  parts of an image,picture or drawing.

POLYGONS

NUMBER OF SIDES:
3.triangle
4.quadrilaterals
5.pentagon
6.hexagon
7.heptagon
8.octagon
9. eneagon
10.decagon
11.endecagon
12.dodecagon
100.hectagon
1000.chiliagon


TYPES:
Star polygons , regular polygons , irregular polygons , inscribed polygons , circumscribed polygons.


ELEMENTS:
Sides , diagonals , vertices , and angles.


Star polygon: is a particular polygon case with a star shape, created out of linking together non consecutive vertices of a regular polygons.

Inscribe polygon: they are polygons place inside circle so all the vertex of polygons.

Circumscribed polygons: they are polygons surrounding a circle ,being its sides tangent to the circle inside.


                                                                      POLYGONS PARTS

Sides: each of line segments that form a polygon.
Vertex: the point in which two sides meet.
Diagonal: segment line that connects non consecutive vertices.
Perimeter: the path around a polygon , the addition of all its sides.
Center:it is a point equidistant from all vertices.
Apothem: line segment from the center to the middle point


                                                              CLASIFICATION
Convex: when any line pass for 2 points.
Non-convex: when 1 line pass through the polygon it´s cut any parts.
Equiangular: all polygons that have angles, vertices and sides equal.
Equilateral: all sides are of the same length.
Regular: all vertices angles and sides are equals.
Irregular: show different angles and length for their sides.
 

CIRCLES AND TRIANGLES

                                                                     CIRCLES:
 1º . First you need to do two diagonals because you need to know the center of the paper.
2º .You do a circle from the center.
3º . Do another circle from one point of the perimeter of the circle.
 4º . Do the same thing repeatedly.

               CAUTION!!!! YOU CAN´T MOVE THE DISTANCE OF THE COMPASS.     

TRIANGLES

1º .First you need to do points from all the paper.

2º. Link with lines all the points forming triangles.

3º .Made parallels with the rulers.

4º .If you want you can made it with colors.

DEFINITIONS ABOUT CIRCLES

Circle: set of points at the same distance to the center.
Circumference: the complete distance around the circle.
Center: is the middle point.
Radius: is the length from the center  to its perimeter.
Diameter: its the length is double than the radius.
Chord: a line segment which connects two points of the circle not through the center.
Arc: segment of a circle.
Tangent: element which touch a circle in one point .
Outer: when an element doesn't touch a circle in one point.
Inner: when an element is inside the circumference.
Concentric circles: they are circles whit different radius.

HALLOWEEN´S THEORY

Halloween is the one of the oldest holidays still celebrated today. It's one of the most popular holidays, second only to Christmas. While millions of people celebrate Halloween without knowing its origins and myths, the history and facts of Halloween make the holiday more fascinating.

Some people view Halloween as a time for fun, putting on costumes, trick-or-treating, and having theme parties. Others view it as a time of superstitions, ghosts, goblins and evil spirits that should be avoided at all costs.

As the Christian debate goes on, celebrating Halloween is a preference that is not always viewed as participating in an evil holiday. Halloween is often celebrated with no reference to pagan rituals or the occult.


Halloween History

Halloween is on October 31st, the last day of the Celtic calendar. It was originally a pagan holiday, honoring the dead. Halloween was referred to as All Hallows Eve and dates back to over 2000 years ago.

All Hallows Eve is the evening before All Saints Day, which was created by Christians to convert pagans, and is celebrated on November 1st. The Catholic church honored saints on this designated day.


Origin of Halloween

While there are many versions of the origins and old customs of Halloween, some remain consistent by all accounts. Different cultures view Halloween somewhat differently but traditional Halloween practices remain the same.

Halloween culture can be traced back to the Druids, a Celtic culture in Ireland, Britain and Northern Europe. Roots lay in the feast of Samhain, which was annually on October 31st to honor the dead.

BASIC GEOMETRY CONCEPTS

Geometry: is a subject studies operations in points,lines and shapes.
Point: is the place where two lines intersect.
Ray: is the direction of the line.
Line: is a right infinite.
End point: a line that only have end.
Line segment:  a line with two endpoints.

DEFINITIONS ABOUT ANGLES AND LINE.

Parallels: two lines which never intersect.
Perpendicular: they are lines which intersect forming four right angles.
Oblique: they are lines which are not parallels and perpendicular.
Angle: it is a figure formed by two rays.
Vertex:  vértice

CLASIFICATE ABERTUR.

Right: two lines intersect forming an angle of 90 grades.

Obtuse: two lines intersect forming an angle of + 90 grades.

Acute: two lines intersect forming an angles of- 90 grades.

Flat: angle of 180 grades.

CLASIFICATE TWO ANGLES 

Complementary: forming 90 grades.

Suplementary: forming 180 grades.

Adyacent: they are angles that share one side and a vertex.