Here’s a new set of resources I made, modeled after Dan Meyer‘s 3-Act Tasks, that teachers can use to introduce or teach probability:

**Intro Video: **Play this video first to generate curiosity and student questions.

**Followup/Discussion/Problem Solving:** Students will, hopefully, have questions about the likelihood of so many consecutive green Skittles coming out of the bag first. Have students use math to answer their questions. They’ll probably need some additional information regarding the variety of Skittle colors. Here’s an image breaking down the color distribution of the first package that gets dumped onto the plate:

Depending on the assumptions students make, the probability of getting four consecutive colors out of the bag of Skittles will vary, but will most likely range from 0.008 to 0.0016. *So, what’s more likely? That I lucked out while shooting video, that I must have done a ton of takes before I got the video I wanted, or that something nefarious is afoot–some shenanigans going on?*

**Reveal Video:** When you’re ready, show the students this:

**Sequel: **Show the student the image below to initiate another discussion or as homework. Shake-a-day is a popular bar game where I am from: ask the bartender to play and he’ll put you’re dollar in the jar and hand over a cup of dice. Rules vary from bar to bar, and are simplified for the sake of the image below, but in general you get a few rolls to get 5-6 dice to all land on the same number. If they do, you win all the money in the jar. Something I have noticed through extensive “research:” the amount people win seems to always be significantly lower than they amount one would expect given the odds of winning. My personal conclusion: the probability of winning legitimately is much lower than the chance that something *nefarious is afoot! *Are bartenders in cahoots with their customers, skimming from the jar, or turning a blind eye to dishonest players are keeping those jar amounts low?

Hopefully you or someone you know will find these resources useful in their classroom!