On Thu, Jun 11, 2009 at 12:37 PM, Daniel Ajoy <[email protected]> wrote:
> > http://www.reddit.com/r/math/comments/8riul/teacher_looking_for_software_for_displaying_3d/ > > """ > Hi, I have spent a good few hours on a fruitless search for something that > will help my students understand 3D vectors better. PyGeo (http://pygeo.sourceforge.net/) might do what you are looking for. Note that its creator, Arthur Siegel, was a prolific contributor to edu-sig and, sadly, passed away a few years ago. André > What I'm teaching is basically stuff like this: The equation of a line in > three dimensions (something like r = a + t b (b is a direction vector, t is > a parameter) > > The equation of a plane as r . n = a . n > > Intersection between lines and planes, angles between two planes, between a > plane and a line, identifying lines as skew, parallel, etc., techniques like > cross product for finding plane normals. > > (This is all part of the UK "A-level" Maths if you're wondering). > > I'm looking for something to help visualise this type of mathematics, > because almost all students say this area is one of the hardest of the > course, and they never seem to be very good at constructing an appropriate > image in their mind that would allow them to see a sensible strategy for > finding the solution. I feel sure that my combination of metre rules and > desks and pieces of paper is insufficient for them to build a good mental > picture. > > So I want something that will not only show planes and lines on the > projector screen in a good quality 3D representation, but will (v important) > allow me to rotate the image or the objects in the image, or move lines and > see how a point on the line moves with it, etc. > > Software doesn't have to be free, but I doubt my school would be prepared > to pay several hundred dollars. I teach English qualifications in China, by > the way, so bear that in mind. > > Edit: I forgot to mention we don't have internet in the classroom at the > moment, so it needs to be an offline tool. > > Thanks if anyone has a suggestion. > """ > > > _______________________________________________ > Edu-sig mailing list > [email protected] > http://mail.python.org/mailman/listinfo/edu-sig >
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