This is a student-centered, hands-on activity that guides students through the collection of data (experimental probability). They conduct events 25 times to make it easy to convert to percents. There is also a reflection page for sale that provides a table for students to collect data between classes (we gathered data from the entire 7th grade) to show how experimental data gets closer and closer to theoretical. Please see "Experimental Probability Stations Reflection Page."
There is also a one-page scaffolded notes page to teach the concepts before the students move through the stations.