This challenging worksheet asks kindergartners to think carefully about what counts as a noun. Multiple choice questions guide them to pick cat, school, park as the all-noun group, to spot july as the word that needs a capital letter, to notice that sing is not a noun, and to choose lake / Lake Erie as the common-and-proper pair.

In the fill-in-the-blank section, children label mountain as a common noun, find Ben as the proper noun in My friend Ben has a bike, learn that holidays like Christmas are proper nouns, and match Fluffy to its common noun cat. This deeper sorting work strengthens the grammar foundation kindergartners carry into first grade.