Add some excitement to your grammar lessons with this free game from Easy Grammar Systems. Preposition Bingo is a fun classroom game that teaches students about prepositions and prepositional phrases. (A preposition is a word that shows direction, location, or time. A prepositional phrase begins with a preposition and ends with a noun or pronoun. That noun or pronoun is called the object of the preposition). Download a list of preposition words, a blank Bingo Board template, and instructions for how to play.