There have been a lot of cruise ship mishaps and disasters this year. While these are in the news, let your students consider how these floating cities manage their resources and which of their needs are precarious as they calculate the per day and per cruise requirements.
There's plenty of room here for some fun extentions using our sewage numbers. Let us know of your ideas (or the kids)!
For members we have an editable Word doc and solutions.
CCSS: 5.NBT.7, 6.RP.3, 6.NS.3 , 7.RP.3 , 7.NS.3 , MP6
It is easy to engage students in many of the CCSS math practices in our activities (especially MP1 and MP2). This activity is a great opportunity to have students engage in MP6 "Attend to Precision"