NRICH
| Created: | 2007-07-27 12:34 |
|---|---|
| Institution: | Faculty of Education |
| Editors' group: | (not set) |
| Description: | (No description) |
Media items
This collection contains 7 media items.
Media items
A Card Spell
2,973 views
Cards are dealt from a pack as they are spelt out in order. What order do they have to be in for this to work?
Collection: NRICH
Institution: Faculty of Education
Created: Mon 30 Jul 2007
Knot Chirality
186 views
A quick demonstration of two knots - one chiral and one not.
Collection: NRICH
Institution: Faculty of Education
Created: Thu 9 Aug 2007
Tangle Manipulatives
197 views
Some simple equipment tht makes it easier to manipulate tangles single-handedly. Also, something interesting happens when you repeat 'twist twist turn' indefinitely.
Collection: NRICH
Institution: Faculty of Education
Created: Thu 9 Aug 2007
The Conway Rope Trick
3,035 views
A demonstration of Conway's Rational Tangles using skipping ropes. Tangles made this way can be placed in one to one correspondence with fractions.
Collection: NRICH
Institution: Faculty of Education
Created: Fri 27 Jul 2007
The Reidemeister Moves
245 views
An introduction to the Reidemeister moves in Knot Theory.
Collection: NRICH
Institution: Faculty of Education
Created: Thu 9 Aug 2007
Turning Granny
160 views
A suggestion that there might be something to learn about knots by looking at their symmetries. For example, you can distinguish a granny knot from a reef knot this way.
Collection: NRICH
Institution: Faculty of Education
Created: Thu 9 Aug 2007
What is a Knot
186 views
A simple explanation of the idea of a mathematical knot.
Collection: NRICH
Institution: Faculty of Education
Created: Thu 9 Aug 2007