Turtle Diary provides an interactive activity for kids to have fun while learning all about countable nouns. Countable nouns are nouns that can be counted and used both in plural or singular forms. The activity on countable nouns lesson works through as identifying the correct word as a countable noun. Learning about the concept of countable nouns is an important lesson while teachable general language skills. Children with excellent language skills grow up to become strong writers and speakers, which is proven to be a basic element needed for success as adults.