IB Maths Resources from Intermathematics
IB Maths Resources: 300 IB Maths Exploration ideas, video tutorials and Exploration Guides
Non Euclidean Geometry V - Pseudospheres and other amazing shapes Non Euclidean geometry takes place on a number of weird and wonderful shapes. Remember, one of fundamental questions mathematicians investigating the parallel postulate were asking was how many degrees would a triangle have in that geometry- and it turns out that this question can be... Continue Reading →
http://www.youtube.com/watch?v=VIVIegSt81k Hexaflexagons - Amazing Shapes Investigation: Hexaflexagons look at first glance to be somewhat prosaic origami shapes - but like mobius strips they hide some surprises. Flexagons are paper shapes that can be folded to reveal hidden faces - and hexaflexagons themselves have six sides. What's remarkable about hexaflexagons is that during folding, some faces... Continue Reading →