[Geoinfo] cubos para clases de geología estructural

[Rubén Somoza]

Hola
Yvette D. Kuiper usa unos cubos (los llama "dry-erase cubes") en clases de
geología estructural, me parece una idea muy buena para facilitar a que
los alumnos comiencen a visualizar en 3D. Abajo está el email.
Los cubos se puden ver en http://www2.bc.edu/~kuipery/ y en la parte de
publicaciones hacer click en "AGU poster" (el 1er. artículo).
saludos
Rubén

Rubén Somoza
Dpto. Ciencias Geológicas, FCEyN, UBA
Ciudad Universitaria, Pabellón 2
C1428EHA, Buenos Aires, Argentina

>
>Hi All,
>
>I designed a teaching tool for geoscience courses such as structural geology
>and field mapping and methods. The dry-erase cube is a 10 cm cube made of a
>white opaque high-density plastic that can be drawn on with dry- or
>wet-erase markers, and easily be cleaned. I initially designed them to help
>the students draw block diagrams, but once I started using the twelve blocks
>I had made by our machine shop I found many more applications (see
>description at the end of the email or sources indicated below). They really
>help the students develop their three-dimensional thinking skills and they
>greatly improve the fun-factor of courses and labs for the students.
>
>By now I have found a manufacturer and Boston College is willing to help me
>with the distribution. At this stage I need to know how many of them I need
>to have made, so I can make them available to you.
>
>The dry-erase cube are currently being published in the newest issue of JGE:
>Kuiper, Y.D., 2008. The dry-erase cube: making three-dimensional
>visualization easy. Journal of Geoscience Education v. 56, n. 3, May, 2008,
>261-268.
>
>and you can look at them on my website:
>http://www2.bc.edu/~kuipery/
>(scroll down to publications and click on AGU poster)
>
>The ones I am having made will not have any screws as the ones on the
>pictures. The price should be no more than $15 per cube (plus shipping from
>Boston College to you). I know you're thinking that's expensive (I was
>thinking it), but the material itself is expensive and it includes import,
>export, taxes and other fees we might have to pay (still working on that).
>Furthermore, they last pretty well forever so this is a good investment for
>many years to come.
>
>Assuming that they'll be $15 per cube, can you please let me know if you're
>interested in buying them, and if so, how many? I recommend that you have as
>many cubes as you have students in your class, so that every student can use
>a cube, and not less than eight cubes (so you can draw a map on top of four
>cubes arranged in a square, draw cross sections on the sides, and add an
>additional layer on top for the next level of map and cross sections; this
>would be a group exercise). However, for people with big classes and/or
>small budgets you can always have several students share a cube or cubes.
>Even one cube would serve demonstration purposes is you need to. (Imagine
>though how many cross sections you could draw for a map drawn on top of 100
>cubes :-) )
>
>If you're interested, please email me (kuipery en bc.edu) the number of cubes
>you'd want to order.
>By responding to this email you are not yet committed, but please give me a
>number that is as accurate as possible so that I don't over- or
>under- estimate the numbers too much.
>
>All for now. To be continued...
>
>Yvette
>
>A cube made of white opaque high-density plastic, which serves as dry- (or
>wet-) erase material, makes teaching and learning three-dimensional geology
>much easier and fun. Maps, cross sections and block diagrams can be drawn
>(and erased!) and seen in three dimensions, and compared with their
>two-dimensional projections on paper. For example, the cubes are very useful
>for teaching the concept of apparent dips, which is essential in the
>construction of cross sections and block diagrams, and is confusing to many
>students. Plotting apparent dips on block diagrams is especially difficult,
>because of the distortion caused by the projection. The dry-erase cube
>provides an intermediate step. Students can first draw the actual apparent
>dip on the cube and subsequently construct the same angle on the projection
>of the block on paper. This can be made especially easy if the edges of the
>cube have the same length as the edges of an isometric block diagram on
>paper, so that they can simply be lined up.
>
>Several dry-erase cubes can be placed adjacent and on top of each other, so
>that multiple levels of maps, and parallel and perpendicular cross sections
>can be constructed. The relationship between maps and cross sections is then
>clearly visible. The cubes are also an aid in the understanding of
>stereographic projections, because structural data can be made visible as
>three-dimensional planes and lines before they are plotted. The dry-erase
>cubes are not only useful for geoscience teachers, but or anyone teaching or
>dealing with geometries and block diagrams, e.g. engineers and
>mathematicians, geologists in the petroleum or mining industries,
>hydrologists and K-12 teachers.
>
>Yvette D. Kuiper
>Assistant Professor
>Department of Geology and Geophysics
>Boston College
>Devlin Hall 213
>140 Commonwealth Avenue
>Chestnut Hill, MA
>02467 USA
>
>Tel. 617-552-3647
>Fax. 617-552-2462
>http://www2.bc.edu/~kuipery/

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