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1. Classroom Resources | Grades   1 – 12  |  Calendar Activity  |  July 12
   Henry David Thoreau was born in 1817.
   Students make mental "snapshots" of a natural setting, then capture the details of their setting by writing and then creating a class booklet of the nature walk.
2. Classroom Resources | Grades   1 – 6  |  Calendar Activity  |  July 1
   The first U.S. zoo opened in Philadelphia in 1874.
   Students consider how zoos have changed over the past century and design their own zoo of the future using drawings, posters, dioramas, or other displays.