Please get your cup of tea and scones, today we are being very proper! Proper nouns, that is. In this lesson, students learn the difference between common and proper nouns. Proper nouns are specific nouns, like Hercules, The Pacific Ocean, or PlayStation. This video also reviews plural nouns, and we take a look at how plural nouns affect sentence structure. Lucas sips tea, Lucas and Isabella sip tea. Pinkies out, everyone.