M&M graphing can be an effective hands-on lesson for teaching concepts which young children will be more likely to retain. The attractiveness of the candies will get students' attention and the thought that they would eventually have them for snacks at the end of the lesson will help to keep them attentive and competitive.
In addition, the lesson will provide prerequisite knowledge students can use in understanding concepts in probability.
Have fun teaching the lesson. If you found this lesson plan useful, your positive feedback will be greatly appreciated.