Students will be so excited for writing with this NO PREP Start a Pie Shop activity, they will jump right into the fun! In this Bite-Sized PBL unit that is perfect for Pi Day learning, students will have the opportunity to plan a pie business by using all 3 modes of writing, opinion, narrative, and informative.Click on the PREVIEW button above to get a closer look at everything this unit includes.Let’s face it. Not all teachers have time to do a full-blown, complete Project Based Learning unit.