As a wrap-up to our Games of Probability group project, my
6th graders and I were talking about the probability of getting a
"Yahtzee" if you were playing with 2 dice instead of five (if there is one mathematical habit of mind that may be burned into the soul of each of my students this year, let it be the idea to try a simpler case). We were discussing the case
where you get your Yahtzee on the third roll. We went over the probability of not
getting a Yahtzee on the first roll. I rolled 2 dice and didn't get a
Yahtzee. We then went over the probability of not getting a Yahtzee on the
second roll. I rolled again and didn't get a Yahtzee. We went
over the probability of getting a Yahtzee on the third roll. I rolled two
dice and, what do you know, rolled a Yahtzee.
In the words of @cheesemonkeysf, "I love it whenever the Universe tosses a teacher a freebie."
I've been teaching some permutation (or is that combination?) of math and science to third through twelfth graders in private and public schools for 12 years. This year I'll be working with 5th and 6th graders. I'm also pursuing my EdD in education. Click on the link above my blog posts for more information on that.