Grade 1 worksheet on possessive nouns using apostrophe + 's' for grammar practice.

A printable grammar worksheet for Grade 1 students from K5 Learning, titled "Possessive Nouns - Using apostrophe + 's'". The worksheet includes ten sentences with blanks for students to add an apostrophe and 's' to show possession, such as "The car belongs to my mother. It is my mother ______ car." A colorful beach ball illustration is in the bottom right corner.