## Three-Act Math: Probability in Craps

What are the odds of winning at craps? Is craps a fair game? What’s your chance of making the point? A three-act math task inspires some questions in probability.

#### Act One: Launch

We began by watching a clip from the move, A Bronx Tale. (Be warned: there is some… colorful language in this clip)

## Three-Act Math: Super Stairs

For our second three-act math task, we learn it is sometimes just as interesting when mathematical models do not work and we have to figure out why.

This week, CAMI continued learning about Dan Meyer’s three-act math model by working on the Super Stairs problem. In keeping with the three-act framework, we started the meeting by watching the short video
below a few times and then posing some questions. Continue reading “Three-Act Math: Super Stairs”

## The Mathematics of How CAMI Got Its Name

What does it mean for a decision to be democratic? What role can math play? We explore 7 different voting methods to find out (and name our math teacher circle).

#### Background

So before our last meeting (Feb. 2015), we sent out an electronic survey to choose a name for our group. Teachers were asked to put the 12 choices in their order of preference from most preferred to least preferred.

Mark presented the results from the electronic survey to name our group. Here are the Results from Online Survey he created. Rather than announce a winner, Mark asked everyone to take a few minutes to look over the report. Continue reading “The Mathematics of How CAMI Got Its Name”

## Problem-Posing with Visual Patterns

We can get conditioned to approach visual patterns in a particular way and jump immediately to the problem of looking for the nth figure (# of squares, for example). Beginning with an open, problem-posing approach can help break us out of that habit and really open up the mathematics.

Usha led us through an exploration of a visual pattern, building off of the work we’ve done at the last two meetings. She used problem posing to enable us to have greater ownership on the problem and to widen options to explore.