Skip to main content

Eleanor invents

Eleanor's cousin introduced her to the "dot" game: you take a grid with dots, each person draws a line connecting two adjacent dots (north, south, east or west), and if you draw the fourth line creating the square you write your initial in it and go again. Here's the wikipedia article, if you're interested.

Eleanor drew her own (slightly wobbly) grid with 100 squares. She was quite impressed with the grid and she was convinced that her mother would much rather play dots with her than clean the kitchen. I actually felt as though I had paid my dues playing the dots and boxes game when I was younger, but I started playing just to spend time with her. I was expecting to be bored, try to help her win, and go back to cleaning.

Almost immediately Eleanor decided we should change the rules for the game. Now you didn't have to connect adjacent dots, you could connect any dots, as long as you didn't go through another dot or cross another line. When you completed a polygon of any shape, you wrote your initial in it, although this polygon could be further subdivided (Eleanor loved this technique). This made the game much more fun and unfamiliar. It did increase in theory the number of lines that could be drawn, but the limitations decreased the number of lines that were actually drawn. The grid after playing was much more attractive and interesting.

The best part is that it wasn't boring at all: there are plenty of mathematical and strategic questions I would like to answer. I wonder if this is a good game, or if there are strategies I haven't thought of which make it trivial. We kept score by the number of boxes, but it might be more interesting to keep score by total area covered (probably you'd need a computer to do the figuring). Also, the rule about subdividing already completed polygons might have to be revisited. If you keep score by area, the game seems like it might be related to Go.

Anyway, I was impressed by Eleanor's creativity. Also by her ability to keep her mother fascinated by a game I thought I had already played out.

Comments

Popular posts from this blog

Why you should study the history of math

  Why you should study the history of math In the mid 1300s a fad made its way around Italy. Mathematicians would challenge each other to “mathematical duels”. They would post problems for their opponents to solve, sometimes along with their solutions in coded poetry. The winners would get support and funding from rich patrons, the losers would descend into obscurity. One such contest, between Fiore and Tartaglia, involved a new method for solving the cubic. In order to win, Tartaglia worked day and night to find Fiore’s method---unfortunately, Fiore did not do the same and only knew his own method and no others. (*Recall that the formula for solutions to quadratic equations of the form use the quadratic formula, Giorlamo Cardano---physician, philosopher, astrologer and mathematician---convinced Tartaglia to share his method and promised never to reveal it. Then Cardano figured out a more general method, and wanted to share it, but was blocked by his promises. Fortunately (for Cardan

Southern butter mints---vegan edition

After the last post, we started to be able to see what the fuss was about.  The ones made with twice the butter were the best candy I have ever tasted.  Ever.  So then we started experimenting.  How long do you pull it?  Longer than you think.  And then pull a minute or two after that.  Suddenly every single batch was creaming, pretty much right after we would cut them. I tried adding less than double butter and I think they taste much better (more delicate, according to one taste tester). The latest experiment we did involved using Earth Balance instead of butter.  It cooked pretty much the same as usual, although I was distracted right at the moment I had to pull it off the stove so it cooked maybe a bit longer than usual.  Amanda and I each pulled a quarter, while Luke pulled the bigger half.  Luke's really wasn't turning very fast---perhaps because it was too hot when he took it off the marble.  Mine was turning faster than Amanda's so we traded for a while.  Aman

Parenting successes?

Chanson at Letters from a Broad has a post which includes of one of her parenting successes , involving the benedictory smile of a Swiss cashier. I've had some of those public recognitions of good parenting, and I always try to point out to parents when their kids are doing particularly well (especially when the parents look harried). Sometimes, though, the success doesn't look like a success to outsiders. Last week we took the kids to our favorite Greek restaurant. We have been getting gyros for Amanda for a few years now (dairy, egg and nut free!), and we have typically gotten one plate of gyros for Amanda and Luke to share. We get it with french fries, and Amanda is "rewarded" for eating the meat by getting to eat as many french fries as she can (she needs all the calories she can get). Luke's idea, smart boy that he is, is that he doesn't need to eat anything other than the french fries. This week we had had enough of this, and instead of letting Luke