It 's important for children to be able to identify and distinguish the difference between question and statement sentences. In this grammar lesson, kindergarten and first grade learners will discover that these two types of sentences require different punctuation at the end—a period and a question mark. They'll also learn that interrogative words such as who, what, when, where, and why are the words that make a sentence a question. Kids will gain practice of this concept by using an included worksheet to finish the ending punctuation of sentences. Then, when they are ready, they can formulate their own sentences!