April 16-24, 2011 is National Parks Week, when admission to all 394 National Parks is free. Did you know that many historic sites and natural wonders are National Parks also? For instance, the Lincoln Boyhood National Memorial, Antietam National Battlefield, Agate Fossil Beds National Monument, Cape Cod National Seashore, Death Valley National Park, and Aztec Ruins National Monument are all National Parks and would make wonderful field trip destinations for some interesting history or science lessons. I find that one of the joys of homeschooling is having the flexibility to incorporate more field trips into my kids education.
Also, Saturday, April 23, is National Junior Ranger Day, and children can take part in many fun activities and earn junior ranger patches.
Many parks even have curriculum based education programs!