This is a set of 5 stations that focus on metric mass using a triple beam balance. The stations include: design, practice, experiment, read & summarize, and conclude. Each station takes approximately 10-15 minutes to complete and their answers can be recorded on their answer sheet (included). I have a ton of miscellaneous objects in my science classroom so for the "design" station, I lay them out on several trays and let students explore. Any objects lying around the classroom would suffice. I also included the station signs to help guide students and keep things organized. For this unit, I did not include the "build" station but the sign is still in the package. Let me know if you have any problems with the download and I can't wait to hear how you modified this to make it your own and even improve its implementation!