For more information type in Lewis and Clark in the Hulu search; watch the videos for more background.
Process
Step1: Gather research about the Corps of Discovery. This should include the path that the Corps took and the things that they discover along it. For example, they discovered animals, find old records, old maps, compile this information into the project; models of the animals Lewis and Clark found have to be included in the project with printed out maps that Lewis and Clark themselves have drawn. Also start to make the map on which you will amp the trail. Click on the second Hyperlink for a basic map of the US. (3 days)
Click Here for help on this step
Step 2: Sketch an outline of the U.S. and the path that Lewis and Clark took. Decide what facts you are going to incorporate into the model. What people are you going to put in the project? What animals? Start creating Index Cards. (4 days)
The Lewis and Clark Expedition; The Corps of Discovery
Step 3: Get your materials together and build the model. Create the map and draw the trail that Lewis and Clark took. Make the models of the animals and the members of the Corps with clay or paper-mache. (2 days)
If you want to use Paper Mache watch the video above to help you.

If you are using clay, then use the video below to help you.
Step 4: Polish up the project and insert the index cards. Make sure your project is perfect and is attractive. Make sure it is perfect. (1 Day)
Your model will be due on the tenth day.