PHILADELPHIA (CBS) – The Philadelphia Zoo says it will again offer its popular “Summer Break Teacher Pass” to certified/licensed pre-K to 12th grade classroom teachers, principals and assistant principals who work in public, private and charter schools.

The pass is valid for an individual single admission, Mondays through Fridays, from June 15 to August 31, 2016.

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Teachers can use the pass to visit the Zoo multiple times during this period.

Registration opens Monday, March 14 on the Zoo’s website at http://www.philadelphiazoo.org/Learn/schoolvisits/Teacher-Resources.htm.

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The Zoo says each teacher must complete his or her own application and create their own account using their email address to print their Teacher Pass.

Teachers must register online for one individual pass and must bring BOTH a valid pass and their teacher ID, union card or school district pay stub each time they visit the Zoo.

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For more information, visit: www.philadelphiazoo.org.