You can view the slideshare of this presentation. I like the way she included screen shots of some of the preparation and also what the results and data will look like.
I found this website that has multiple activities with fractions. It includes the materials needed for the activities and instructions. It lists extensions and assessment ideas. It also has a listing of books about fractions. It even contains links to other websites where students can play fraction games. (And I only had trouble accessing one of the links.) From Heather Johnson
Instructional guides with model that include authentic performance of PBL assessments with accompanying rubrics. Separated by discipline, including the arts. Rec. by Megan Utter