Thanks to Mark Muldoon and Cindy Armstrong for their assistance in putting this together this is a great 90 minute lesson about unpacking a seed.  Unpacking a seed essentially means using an image or an object to inspire your students to delve really deep into the concepts related to that as a group and produce a great piece of writing based on the ideas which come from that.  You can  directly download the full PowerPoint lesson plan here or simply use the slideshare below.  Enjoy