Conclusion

You have learned a great deal of physics!  You now know forces and motion affect the earth and everything on it.  You have also learned about simple machines that reduce the effort needed to accomplish a task.  You have experienced teaching a concept to others.  Think about what you have learned.  What questions do you still have about these topics?  Did you enjoy teaching the third graders? 

You will enjoy creating some whirligigs that apply the concepts that you have learned:

http://www.sci.mus.mn.us/sln/vollis/trythese/trythese.html

Are you interested in becoming a teacher?  Check out the links on this web page:

http://k-6educators.about.com/cs/becomingateacher/