This is a creative and fun activity to do with your students on St. Patrick's Day!
The only thing you need is enough Lucky Charms for each group to have one serving.
This project involves a story about a girl whose dentist dad will not let her have sugar, but decides to bend his rules for St. Patty's Day. He will let her have sugar if less than 40% of the Lucky Charms box has marshmallows. The students' job is to figure out if this is true.
Students work in cooperative teams. The level of instruction is up to you. I have done this problem with high-ability fourth and fifth graders and given them little to no instruction on percentages, and they worked on it as an inquiry based project. I also have done this project with a regular third and fourth grade group, but gave a minilesson on percentages first.
You know your class, and what you can do with them! This takes about an hour, longer if you want the kids to present. It also crosses curricula into reading/writing, as the problem is story-based and the end result can be a creative persuasive speech/writing assignment.
Also includes a rubric that can be modified based on your class.
Good luck, have fun, and thanks for looking! If you have any questions please feel free to contact me.
If you buy/use this activity, let me know what you think! Thanks! :)