
3rd Grade · Writing
Expand Your Sentences
Free printable 3rd Grade writing worksheet: Expand Your Sentences. It practices sentence building (Common Core L.3.3a). For ages 8-9. Download the PDF, print it, or fill it in online.
Fill in or color online- Grade
- 3rd Grade
- Subject
- Writing
- Skill
- Sentence building
- Ages
- 8–9
- Standard
- L.3.3a
- Format
- A4 PDF · print or fill in online
About this worksheet
“Expand Your Sentences” is sheet 15 of 30 in our free 3rd Grade Writing Worksheets collection, written for children aged 8–9. It focuses on sentence building.
In the set it comes after “Editing Checklist (CUPS)” and before “Transition Words”. Working through them in that order, one sheet a day, builds the skill a step at a time.
What this worksheet practices
L.3.3a · Common Core English Language Arts · Grade 3
Language · Knowledge of language
Children work on choosing words and sentence styles for effect when writing or speaking.
How to use this worksheet
- 1
Talk through the plan out loud before writing. A child who can say their three reasons will write them far more easily.
- 2
After the planner, copy the paragraph onto lined paper. Keeping planning and writing separate is how 3rd graders learn to organise ideas.
- 3
Use the CUPS checklist on every piece of writing, not just the sample paragraph.







