Detective Capitalization

This worksheet is designed to help students in Grades 3, 4, and 5 strengthen capitalization skills, grammar mechanics, editing accuracy, narrative comprehension, and proper noun identification through a themed rewriting task. Students read a mock detective case report with intentional capitalization errors and revise the passage by correctly capitalizing names of people, places, and holidays.

Skills Reinforced

• Capitalization Conventions (Grades 3-5): Apply standard English rules for capitalizing proper nouns in context.
• Proper Noun Identification: Recognize names of people, places, and events within a narrative passage.
• Editing and Revising: Practice proofreading skills by correcting errors in paragraph form.
• Grammar in Narrative Writing: Strengthen understanding of mechanics within extended text rather than isolated sentences.

Instructional Benefits

• Teacher-Created Resource: Designed by educators to align with upper-elementary language arts standards.
• Engaging Detective Theme: Motivates students and encourages close reading and attention to detail.
• Authentic Editing Practice: Uses a full passage to mirror real writing and revision tasks.
• Flexible Use: Suitable for independent work, writing workshops, grammar lessons, or assessment.

This printable grammar worksheet helps students build confidence with capitalization, proofreading strategies, and proper noun usage in meaningful context. By editing a detective-style narrative, learners strengthen accuracy, focus, and grammar awareness. It’s a low-prep, classroom- and homeschool-friendly resource that turns capitalization practice into an engaging, skill-building activity.

This worksheet is part of our Common vs. Proper Nouns collection.