This worksheet is designed to help third-grade students learn how to write effective topic sentences. It begins with a simple explanation of a topic sentence and its two key elements: the topic (what the paragraph is mainly about) and the controlling idea (the specific point or opinion about the topic).

Students will read examples, identify the topic and controlling idea, and practice writing their own topic sentences. Activities such as circling the topic and underlining the main idea, along with writing exercises, help reinforce these skills, making learning fun and interactive.