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Odd-one-out, Rolling Dice 13 Nov 2012 | 08:24 am
Attending: G, S, N Activity 1: Odd One Out We started out by playing “Odd one out” with cards I made. The cards have pictures of obtuse and acute triangles, various quadrilaterals, and higher polyg...
Pigeonhole Principle, “Probability”, and 5 choose 2 9 Nov 2012 | 09:00 am
Attending: S, N Working with stuff from Zvonkin’s book again. I’ll start getting more creative one of these days. Activity 1: Finding pairs of shoes S was late to come down, so I started with N. I s...
Permutations, Towers of Hanoi 8 Nov 2012 | 06:40 am
Attending: S, N Activity 1: Permutations I got this idea from Zvonkin’s book. I set out 4 “armies” of 12 counting frogs: one red, one blue, one green, one orange. I also set out 12 wood blocks I ca...
I’m back 8 Nov 2012 | 06:13 am
I’m going to start blogging again, but I’m too lazy to come up with a new blog name. So here I am. The new material is going to be different. I planning to keep a journal to document the Math-related ...
Changes 8 Apr 2009 | 05:34 am
Obviously posting has been slow lately. It’s about to get slower. I’m retiring this blog. The kids are doing well, learning a lot, and all of that. We are traveling, trying to sell our house,and d...
Time for substance, not rhetoric 26 Feb 2009 | 04:28 am
I’m busy and I don’t have time to fisk Obama’s whole speech. That would just leave me irritable anyway. But there was one little section that jumped out at me: The weight of this crisis will not de...
Introducing binary numbers: part I.I 20 Feb 2009 | 05:22 am
In my first post about binary numbers, I mentioned that I wanted to teach my kids how 0′s and 1′s could be used to represent colors. Instead of talking about it too much, I just built a little web pa...
Carny 22 Jan 2009 | 01:56 pm
For the first time, I’ve submitted a post to the Carnival of Mathematics over at jd2718. I’ve been busy entertaining company for the last few days and haven’t had much time to sort through all of the...
Introducing binary numbers: part I 15 Jan 2009 | 12:16 pm
I mentioned in my last post that I’ve started introducing the boys to binary numbers. This wasn’t really my idea, it was Gunnar’s. He was playing with the electricity set he got for his birthday and w...
What happened to those Daily Math Drills? 15 Jan 2009 | 11:05 am
We’re still doing them, but posting them got a little tedious. Mostly we’re working on single and double digit arithmetic lately because they need to master it and they haven’t gotten bored with it. ...
