This project is pretty simple to implement. The students simply choose a county in their state to research and create a float to represent the history of it. I usually let them choose two or three counties they are interested in and then select one of these for them to complete the project on. Every student has a different county to complete.
Some teachers choose to have students complete this as a home project. I don't like home projects, so my students complete it in class. I let them bring items from home, and I have a huge craft box for them to choose items from. Al the shoe boxes must be covered. Craft paper of wrapping paper work great for this. The students usually do a really good job of wrapping the boxes.
Of course, some are better than others. I've used a rubric before, but this year I used a Do and Don't list. I think it worked just as well. You can tweak them to fit your needs. Click on the picture for a free copy of the list and research outline.
This project is so much fun! Let me know what ideas you have for teaching your state history. Good luck as you continue to create magic in your classroom!