I spend a lot of time and energy trying to come up with hands-on projects for my 7th and 8th graders. Last year, my 7th graders had trouble wrapping their heads around the concepts of latitude and longitude, so this year, I decided to try a project I've heard about a few times at conferences - having each of my students make their own globe out of papier-mâché.

Here are the lessons I learned along the way: