Cool game, well made, but it's driving me nuts. I'm stuck on 3/40 - I've created the enclosing circle for "in origin circle" but game doesn't want to acknowledge it. Clearly I'm doing something wrong....
That's a lot better. I'd like to see it try to snap when dragging. I notice I can click once (compass) and click again on a point, but a click-drag to a point doesn't seem to snap to the point.
I wonder what other mathematical axiom sets can be pretty much directly translated in a game like that. Maybe something from calculus, topology or knot theory.
I recently bought a copy of Euclid and it's been sitting on my bookshelf, waiting for that ever-receding "when I have the time." It's like the author set out to give me the most perfect and thoughtful birthday present. :)
This game is very similar to my first year of college mathematics -- studying Euclid's Elements and working through the proofs. I look forward to the game version of my sophomore year -- Apollonius' conic sections and Ptolemy's astronomy.
I'm struggling on 17. There is no circle that intersects both A and B that is tangential to the line. That's how I interpret the instructions for that level, anyway. However, it seems there should be an infinite amount of circles that are tangential to the line that can intersect A.
Is that to mean tangential to anywhere on the line that intersects B, or B is the point at which the circle is tangential to the line that intersects B?
I'm not sure about you guys, but I'm not getting any feedback whatsoever. I've measured it with all the tools I can find, but I'm not getting any "Well done" or any link to the next level. Any thoughts?
Well, no shit. But I'm saying I constructed an equilateral triangle but the game wasn't recognizing it. After reloading the page a few times it finally started giving feedback, like thickening the line when moving over it (which wasn't happening before), letting me actually place the dot on the intersection between the two circles
Really cool game and great idea, there's some good educational potential here. I'm looking forward to exploring Euclid's proofs again in this digital format. This easily beats dilly-dallying with a real-life compass.
Looks cool! I think math needs to be taught in that kind of style, where people learn by doing it. I would be interested in having something similar to that on my site, Learneroo.com. One suggestion: start people off by walking them through easy challenge so they learn the interface.
I went through couple levels before I realized I got more tools as I go on. Was using just intersect, segment,and compass and things were getting crowded.
85 comments
[ 3.0 ms ] story [ 158 ms ] thread1) Use thicker lines, preferably in a color that contrasts better with white (although it'll be fine if the segment width is 2-4 pixels)
2) Support for drag + snap-to-intersect/vertex UX rather than click only. I instinctively tried this first.
3) Some sort of progress tracking (local storage or user accounts even perhaps)
Anyway, great idea and a promising start!
Great game, though. I'm on level 5 and having a lot of fun.
Thanks for your feedback!
I'll give credit to OP's game however, giving you new tools once you have proved how to do something is great!
Edit: It actually has to be inside of the circle made centered on one of the starting points and with the other starting point on the circle.
[0] - http://sciencevsmagic.net/geo/
Minor UI feedback:
The undo button moves when you click it which is annoying if you intend to step back 2 or more steps.
It looks like Esc is the intended "nevermind" button, but it isn't obvious.
https://en.wikipedia.org/wiki/Euclid%27s_Elements
[1] http://www.geogebra.org/cms/en/
You need to use the tools provided to create something that is guaranteed to be what is asked for.
For instance in the first level you aren't given a ruler, so you need to figure out how to do the level without using one.
... because I'm stuck on #19
T.T
One problem for me is that by default the comments from other users are shown, sometimes with the solution for the level.
Anyway, I long for the day when someone writes a similar toy for a non-Euclidean plane.