3D POLYFELT AND NEOTRIE VR

3D Polyfelts and Neotrie VR have been recently used in the Master's degree in Secondary Education Teaching of the University of Almería to design new and combined activities about polyhedra, tillings and fractals. Want to know more?

Keep aware for these in our facebook pages:

https://www.facebook.com/3dpolyfelt/

https://www.facebook.com/neotrie/

MATEMÁTICAS DE VERANO

El verano está para divertirse, y que mejor que hacerlo ¡jugando con Polifieltros 3D! Si además lo combinamos con Neotrie, el nuevo software de Realidad Virtual, que está desarrollando Virtual Dor, la Geometría toma una nueva dimensión, jamás experimentada hasta ahora.

Esta nueva experiencia es la que han vivido los chavales del Club Náutico de Aguadulce, en unas jornadas organizadas por Juega Conmigo Talleres, durante esta semana del 24 al 27 de octubre de 2017.



Ver más fotos en Facebook:
https://www.facebook.com/juegaconmigotalleres/posts/1518114091565577

Más fotos en breve.

NETS OF THE CUBE

Investigate which of these nets give a cube. You can buy this puzzle in our Shop online. 

See solutions of this puzle here:

A SIMPLE PUZZLE

To all users of 3DPolyfelt, here is a simple puzzle:

How to make a tetrahedron with these 6 pieces of 3DPolyfelt? 

It is important to consider the male and female joins of velcro correctly.

SOLUTION: Thanks to Raul Ibáñez, winner of the Edición 3.4 Emmy Noether, del Carnaval de Matemáticas, for inspiring the solution to this puzzle, and congratulations for this price.

MENGER SPONGE WITH 3DPOLYFELT

Today, some students of the IES Francisco Montoya, from Las Norias (Almería) have constructed the 2nd iteration of the Menger sponge, with the help of their math teacher Lidia García. They have used 1056 squares, 176 squares per 6 colours, one for each face. They have spent about 3 hours to complete it. Really cool and funny!

This project, started with David Crespo as explained in this post, will be presented at the XII Feria de la Ciencia de Sevilla together with many other manipulative games with fractals.

You can see it these days in the hall of the school center!

SQUARE BUILDINGS

How many squares do we need to build the 1st iteration of a Menger sponge? Children can easily count this, if they chose 6 different colors to make it, such that all squares looking at the same face have the same color. In the picture below, we see for instance that the yelow exterior face has 8 squares, and we have 4 more yelow squares in the interior. This gives12 squares per color, so times 6 gives 72 squares. For the second iteration we would need 1056 squares!! We will try to make it soon. If you are interested on a mathematical formula for this and the nth-iteration of the Menger sponge, please visit our blog Juegos Topológicos.

Here, we have pushed the corners to make this nice version with octogonal faces. The flexibility of this material allows to make new figures and shapes.

Mathematics is always fun with 3D Polyfelt, but children also like to play and make its own figures and constructions!

And you can make your own house to play with your dolls!

David Crespo with a Soma cube.

Lidia García making a kind of "dodecahedron" with 60 squares.

NEW 3DPOLYFELT LAMPS!

You can already get the new kit of 60 isosceles triangles to design and mount easily your own geometric lamps, and many other figures!

NUEVAS LÁMPARAS CON POLIFIELTROS 3D: Ya puedes conseguir un nuevo kit de 60 triángulos isósceles con el que podrás diseñar y montar fácilmente tu propia lámpara geométrica y muchas figuras más!

Dodecaedro estrellado pequeño. Small stellated dodecahedron (see the 3 stellated dodecahedra).

David Crespo y Lidia García, colaboradores de Polifieltros 3D montando una estrella octángula.

Estrella octángula

Variante de un icosaedro estrellado. A variation of a stellated icosahedron (see the 59 stellations of the icosahedron).

¿TE IMAGINAS TODAS LAS POSIBILIDADES DE ESTE JUEGO?

Este nuevo juego se ha presentado en la Edición 4.123105625 del Carnaval de Matemáticas cuyo blog anfitrión es Que no te aburran las M@TES.

Además, este juego se obsequiará al ganador de esta edición y otro se sorteará entre los votantes. Puedes ver la entrada Sorpresa de Polifieltros 3D.

[Añadido el 24 de enero: VER PREMIADOS EN EL BLOG DE TITO ELIATRON]

GEOMETRIC BAGS!

3D Polyfelt ables you to design geometric fashion dresses, accessories, etc! Very easy and fast! Look at this bag made with diamonds from the Deltahedra set.

Do you have other ideas? We will publish them in our FASHION AND DESIGN page.

SEMANA DE LA CIENCIA 2012 EN LA UNIVERSIDAD DE ALMERÍA

Polifieltros 3D se exhibió, entre otros juegos geométricos del Mago Moebius, durante la Semana de la Ciencia en la UAL, celebrada del 5 al 9 de noviembre de 2012. Alumnas y alumnos de distintos institutos de la provincia pudieron montar mosaicos y poliedros como los que véis en estas fotos.

Podéis ver más información en el blog de juegos topológicos.

FLEXÁGONO DE ARTUR H. STONE

¡Con la plancha ha quedado perfecto! Puedes doblar el flexágono como quieras, topológicamente es una cinta de Moebius con tres medias vueltas.  Te la puedes poner de muñequera y flipar con tus amigos, nunca se rompe.

Esta entrada participa en la edición 3.1415926 del Carnaval de Matemáticas cuyo blog anfitrión es Series divergentes.

I thank Frank Neumann to suggest to make this figure with 3D Polyfelt.

XIV CEAM MÁLAGA

Today we have held a special session with our 3D Polyfelt game in the "XIV Congreso de Enseñanza y Aprendizaje de las Matemáticas". This congress has been organized by the SAEM Thales, and it  has hosted more than 200 houndred math teachers of all levels. We have enjoyed a lot constructing many varied geometric figures. Thank you all for coming! (Read more to see more pictures)

ARCHIMEDEAN POLYFELT, SEMIREGULAR TESSELLATIONS,...

Regular polygons offer an incredible source of beautiful figures!

http://www.youtube.com/watch?v=Suj91zynme0

See more figures with regular polygons.

DELTAHEDRA WITH DIAMONDS

Here is the solution of the puzzle of the Stewart toroid, together with many other deltahedra. Click over the image to see more figures.

PUZZLE: TOROIDAL POLYHEDRA

With 24 flexible diamonds, you will be able to construct this famous triangulation of the torus surface, due to Bonnie Stewart in 1970. This is the smallest triangulation of the torus made with flat equilateral triangles.

This figure is a chain of 8 octahedra, and has 48 triangles in total. You can find more information about this toroidal polyhedron in wikipedia.

With flexible diamond pieces you can also construct the 8 convex deltahedra http://www.ac-noumea.nc/maths/polyhedr/p_delta_.htm as well as many beaitiful non convex deltahedra  http://www.ac-noumea.nc/maths/polyhedr/index2_.htm, and of course many other curved three-dimensional figures, which are not possible with plastic or wood pieces.

The adventure of flexible deltahedra with 3D Polyfelt just started.  We will publish more pictures here very soon.

PENROSE TESSELLATIONS

Pulsa la imagen para ver más fotos. 

Press to see more pictures

http://www.polifieltros3d.com/p/mosaicos-pentagonales-3d.html