Drawing polyhedra

This task has three parts:

1- In the classroom, you are going to do some sketches from several wooden models. 

2- You also will draw different bottles and boxes related to polyhedric shapes present in the classroom. Little by little, you have to understand firstly the general structure adjusting sizes, proportions, volumen.. Finally, draw shades and shadows to obtain a better effect of reality.

 3- HOMEWORK- Choose things at home that it would be avaliable in order to create a composition, using prism-shaped, cylinder shaped , cone-shaped, pyramid-shaped, sphere-shaped, cube-shaped etc..

NETS OF POLYHEDRA

Image extracted from http://myauladedibujo.blogspot.com/2015/06/redes-geometricas.html

Net (polyhedron)

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A net of a regular dodecahedron

The eleven nets of a cube

In geometry a net of a polyhedron is an arrangement of edge-joined polygons in the plane which can be folded (along edges) to become the faces of the polyhedron. Polyhedral nets are a useful aid to the study of polyhedra and solid geometry in general, as they allow for physical models of polyhedra to be constructed from material such as thin cardboard.^[1]

An early instance of polyhedral nets appears in the works of Albrecht Dürer, whose 1525 book Unterweysung der Messung mit dem Zyrkel und Rychtscheyd included nets for the Platonic solids and several of the Archimedean solids.^[2]

 Image extracted from http://yesicabarreracano5.blogspot.com/2013/03/curvas-los-metodos-de-la-geometria.html

Drawings made by "2015/16 3rd. level" students

PIET MONDRIAN by Miguel López

César Valverde by Lucía Gil

César Valverde Vega was born in San José on the 8 of March in1928. He died the 3 of Decembre on 1998.He was a Costa Rican painter, writer and lawyer. He was also a planner, public official and diplomat. He was one of the first muralists in Costa Rica and a member of Grupo Ocho, a group of Costa Rican artists who introduced abstract art in Costa Rica in the 1960s, which generated an artistic revolution in the national environment. 

Professor and then director of plastic arts at the University of Costa Rica, he was Vice Minister of Culture during the administration of Rodrigo Carazo Odio (1978-1982), received the Aquileo J. Echeverría National Prize for painting three times, and wrote several books, including a short novel. 

He is considered one of the great masters of the avant-garde of Costa Rican art.

Primero ESO NO BILINGÜE EPVA

Hola, estudiantes

EL RETRATO

Vuestra actividad es muy similar a la de vuestros compañeros pero cambiando algunas cosas.
1- Primer paso, haréis varias versiones de vuestro retrato ( autorretrato) y de los retratos de vuestros compañeros. Sois libres de usar la técnica y los colores que queráis.
2- De todos ellos, escogeremos uno y lo vais a realizar utilizando la técnica del collage con revistas, periódicos, fieltros etc.
Os adjunto varios ejemplos para haceros una idea.

1st level the latest task

Hi, students!

This exercise is about THE PORTRAIT.

a)FIRST STEP- Your self-portrait:
Draw a simple sketch pointing the parts of the face explained in the classroom

b)SECOND STEP: Practicing the portrait using your classmate as a model.

c) THIRD STEP. Do 4 versions of your self portrait.
First, you have to divide a drawing worksheet into four parts.
In each part you will create a different version of your self portrait, for example,
one using dots, another one using lines, others applying several techniques...
(black and white and in colours)

Tercero ESO EPVA

Los alumnos de tercero de Plástica no bilingüe, van a realizar la misma actividad que sus compañeros de los grupos bilingües.
Para todos, la fecha límite será aproximadamente el 12 de junio. Por confirmar. Aquí os pongo unos ejemplos.

web de referencia https://sites.google.com/site/teresacuestadelacal/plano

3rd. level

Hi, everybody

Dear learners

We are going to start the latest period of the course so here I attach the next task for you. Don´t hesitate! Ask for helping! No doubts!

FOOTBALL

Welcome to my website for everything you need to know about FOOTBALL. It´s a really cool sport, practice in all the world. You don´t need to much equipment, only sport clothes and football boots. And there are a lot of football fields.
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All about basketball

Basketball is a sport that is played by two teams of five players on a rectangular court.The objective is to shoot a ball through a hoop. The game was invented in 1891 by Dr. James Naismith, who would be the first basketball coach of the Kansas Jayhawks, one of the most successful programs in the game's history.

ABOUT FILMS: TASK FOR 3rd. Level Students

https://drive.google.com/file/d/0B6bxOf0tsh1hZlVaUUlQY3hHUlk/view?usp=sharing

THE COMIC: LINK FOR GETTING INFORMATION USEFUL FOR YOUR NOTES (UNIT 6)

https://drive.google.com/folderview?id=0B6bxOf0tsh1hbEFnRUtOZGYyZjQ&usp=sharing

Polyhedra in Perspective

CAVALIERE PERSPECTIVE:  THE PRISM

DIFFERENT POSITIONS OF PRISM

Extracted from Gonzalo Mori´s book: Ejercicios para Selectividad-Dibujo Técnico, Universidad de Oviedo

CYLINDER   (Cavaliere Perspective)

First, draw diagonals.

                       Divide each half part of square into three parts,

 Draw a parallel line to y by the first part.

Join the points obtained

CYLINDER (Isometric system)

Exactly the same but, in this case, you have to use the drawing compass.

CONE (Cavalier perspective)

                           

Optical illusions: Op-art and 3D street Art

Visit:

  1-For learn more about VASARELY  http://www.vasarely.com/site/intro.htm

https://anartjunkie.wordpress.com/2010/03/08/el-rey-del-arte-optico-victor-vasarely/

2-  MULLER-3 D Street Art   http://ozzgreen.weebly.com/blogozz/arte-callejero-en-3d

Images extracted from
http://www.metanamorph.com/











3- MARCEL DUCHAMP  http://www.op-art.co.uk/history/op-art-history-part-ii/

4-ESCHER

http://www.mcescher.com/

(In Memorian of David Bowie, 1947-2016)

5-DALI   http://webneel.com/salvador-dali-famous-surreal-optical-illusion-paintings

....AND OTHERS....https://es.pinterest.com/debrahar/figure-ground/

http://www.pastemagazine.com/blogs/lists/2013/09/look-twice-10-artists-who-specialize-in-optical-illusion.html

http://www.shutterstock.com/s/optical+illusion/search.html?page=1&inline=97622525

Quadrilaterals

Types of Quadrilaterals There are six basic types of quadrilaterals: 1.  Rectangle Opposite sides of a rectangle are parallel and equal.  All angles are 90º. 2.  Square Opposite sides of a square are parallel and all sides are equal.  All angles are 90º. 3.  Parallelogram Opposite sides of a parallelogram are parallel and equal.  Opposite angles are equal. 4.  Rhombus All sides of a rhombus are equal and opposite sides are parallel.  Opposite angles of a rhombus are equal.  The diagonals of a rhombus bisect each other at right angles.   5.  Trapezium A trapezium has one pair of opposite sides parallel.  A regular trapezium has non-parallel sides equal and its base angles are equal, as shown in the following diagram. 6.  Kite Two pairs of adjacent sides of a kite are equal, and one pair of opposite angles are equal.   Diagonals intersect at right angles.  One diagonal is bisected by the other.

4.  Rhombus All sides of a rhombus are equal and opposite sides are parallel.  Opposite angles of a rhombus are equal.  The diagonals of a rhombus bisect each other at right angles.   5.  Trapezium A trapezium has one pair of opposite sides parallel.  A regular trapezium has non-parallel sides equal and its base angles are equal, as shown in the following diagram. 6.  Kite Two pairs of adjacent sides of a kite are equal, and one pair of opposite angles are equal.   Diagonals intersect at right angles.  One diagonal is bisected by the other.