Category Archives: topology

An Evening of Math II

Tonight I gave the kids the choice of doing more partitions, or something else. They chose something else. In the book Math Tricks, Puzzles & Games by Raymond Blum I found this problem: TUNNELS Try to connect each rectangle with … Continue reading

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Math with Balloons

In demonstrating what a mathematical knot is, balloons are the best medium that I’ve found.  They have enough stiffness to keep the knot from collapsing so that you can’t see its structure (a string or rope would either be floppy … Continue reading

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Knot Tying Schema

I’ve noticed that whenever my two-year-old wants to tie a knot, she takes the two strands that she’s interested in and repeatedly twists them around each other.  Of course this doesn’t produce any kind of knot at all (or I … Continue reading

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More Experimental Topology and Experiments in Topology

I visited my friends Peter and Liz (I stayed a few nights) and came back with a laundry list of things to post about: 1) They have some really cool polyhedra and mathematical quilts, so sometime I am going to … Continue reading

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More Experimental Topology

I was thinking that there might be a way to get a hexagon along the lines of the methods of the post Math with scissors. I told my kids about the idea and they were excited to do some math … Continue reading

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Math with scissors

The other day I visited my son’s class and did the following math demonstration. Take a strip of paper and draw a line down the middle. Our line is red. Tape one end to the other, but put a “half … Continue reading

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