The "Just Move" program uses exercise flashcards that are linked to a grade's curriculum.

CNN: Schools given $25K to help kids move

The U.S. Citizenship and Immigration Services provides online flashcards to help, and the same is true of multiple choice civics tests in high school.

CNN: Citizenship isn't about passing a civics test

Trade in 19th-century events flashcards and test your knowledge of indulgence with the hotel's complimentary European continental breakfast, Wednesday wine and cheese receptions and afternoon tea.

BBC: Daily deal: Historic Baltimore