median
don steward
mathematics teaching 10 ~ 16

Sunday 19 April 2009

number tic tac toe

one player has the 'odd' numbers, 1 to 9 and goes first
the other has the 'even' numbers, 2 to 8

people take turns playing a digit, trying to make a row or column or a diagonal add up to 15

using their own and the other person's numbers




sometimes you can make more than one line that sums to 15

you get a point every time that you obtain a total of 15

play five games being the 'odds' player and five being the 'evens'

is there any advantage to either?

No comments: