I created this for an activity with probability. This can also be adapted to use with M&Ms. Using individual-sized bags of Skittles or M&Ms, students count out the number of candies total, and then record the number of each color of candy. They must then determine the probability of drawing each color from the bag. Students must determine which colors have the greatest and least probabilities of being drawn. They can then eat a few candies without looking at the colors, and determine what happens to the probability of drawing each color after doing so. Of course, students get to eat their manipulatives at the end of the lesson!