How To Write A Story For 3Rd Graders . A character in your story could be talking about something. Interview one of your grandparents and write a report. Third Grade Doodles ROLL OUT THE CARPET FOR REALISTIC FICTION from www.pinterest.com Third grade is a wonderful time for reading and writing development, and these third grade writing worksheets are designed to get kids excited about expressing their thoughts. Making edits to spelling and grammar are considered a final step — and aren’t quite as important as getting their ideas on paper. Journaling can be a great activity for children to reflect.