This is one of my favorite activities from our minerals and mining unit. It takes about 1 whole class period to explain the activity, collect data, eat the cookie (& crumbs), and clean up. We discuss our results the next class and determine who made the most profit.
When determining the value of the chocolate ore, I have the students place their chocolate pieces close together in one area of the map. When they are done, I go around and circle the area of chocolate and give their chocolate a rating. They count the number of boxes their chocolate covers and enter it into their spreadsheet.
If there are crumbs attached to the chocolate, I call that ‘slag’ and it lowers the value of the chocolate ore. This leads to a great discussion afterwards when we compare the profits and talk about land use. Is it better to get out as much chocolate as you can, even if you get a lot of slag, or is it better to remove just the chocolate even though you will have less in the end? How is this similar to coal mining? Diamond mining?
Earlier in the school year, to cap off our unit on the environment, my 6th graders completed an environmental issues research project and presentation. This project was a great opportunity for the students to demonstrate both their public speaking and tech skills, as well as provide a forum for student-directed learning. Each student had a chance to teach their peers about their topic and lead a demonstration or activity related to their environmental issue. They did a fantastic job and came up with activities that really enhanced their presentations. The students were engaged and supportive of their peers.
Just a few examples of their demonstrations/activities:
Noise Pollution – using a decibel app, one student asked the class to take part in different activities and monitored the noise level. The student then compared the noise level in the classroom to their equivalents such as jack hammers or traffic.
Garbage Patch – using a tray with an ocean/coastal scene decorated with items attached to magnets, one student demonstrated how gyres in the Pacific Ocean move plastics from the coast to the Great Garbage Patch by sliding magnets under the tray.
Poaching – each student took part in a role-playing game modeled after “Assassin/Spy”. Each student was given a role card (such as an elephant, tiger, or poacher). As they played the game, students had to find the poacher to save as many animals as they could.