Conjunctions Printable Worksheet | Grade 3 ELA

This focused grammar worksheet helps third and fourth-grade students master coordinating conjunctions, specifically focusing on "and" and "but." By combining simple sentences into compound structures, learners enhance their writing fluency and improve overall grammar proficiency. This targeted practice builds essential foundational skills for advanced writing tasks.

At a Glance

• Grade: 3 · Subject: ELA
• Standard: CCSS.ELA-LITERACY.L.3.1.H — Use coordinating and subordinating conjunctions to combine sentences
• Skill Focus: Coordinating Conjunctions
• Format: 3 pages · 15 problems · Answer key included · PDF
• Best For: Independent grammar practice
• Time: 15–20 minutes

This comprehensive printable packet includes three distinct worksheet pages designed to build conjunction mastery. Students will tackle sentence combining exercises, fill-in-the-blank tasks choosing between "and" or "but," and creative writing prompts using visual cues. The resource features clear instructions, engaging illustrations to support comprehension, and a complete answer key to streamline the grading process for educators.

• Guided practice: The first section introduces the concept with 5 supported fill-in-the-blank questions where students select the correct conjunction based on context clues.
• Supported practice: Students move on to 5 sentence-combining tasks, merging two related simple sentences into one cohesive compound sentence using "and."
• Independent practice: The final 5 problems require learners to generate their own original sentences using targeted conjunctions alongside visual prompts.

This gradual-release approach ensures students build confidence through the classic I Do, We Do, You Do instructional model.

This resource is strictly aligned to CCSS.ELA-LITERACY.L.3.1.H, requiring students to use coordinating and subordinating conjunctions. It also supports CCSS.ELA-LITERACY.L.4.1.f by reinforcing the production of complete sentences, recognizing and correcting inappropriate fragments and run-ons. Both standard codes can be copied directly into lesson plans, IEP goals, or district curriculum mapping tools.

Deploy this worksheet during your morning work routine to activate prior knowledge before a broader writing block. Alternatively, use it as a targeted intervention activity for small groups struggling with sentence variety. While students work, observe whether they correctly identify contrasting ideas requiring "but" versus additive ideas requiring "and" as a quick formative assessment. Most students will complete the assigned tasks within the 15 to 20-minute timeframe.

This resource is ideal for third and fourth-grade general education students developing their foundational writing mechanics. The visual supports and structured sentence frames make it highly accessible for English Language Learners and students receiving special education accommodations. For maximum impact, pair this worksheet with a mentor text read-aloud that heavily features compound sentences, allowing students to see the target skill applied in authentic literature.

Mastering the use of coordinating conjunctions is a critical milestone in elementary literacy development. Aligned to CCSS.ELA-LITERACY.L.3.1.H, this resource requires students to use coordinating and subordinating conjunctions to combine sentences effectively. According to a recent ScienceDirect TpT Analysis, explicit grammar instruction that isolates specific mechanical skills before integrating them into broader writing tasks significantly improves student retention and application. When learners practice combining sentences with targeted conjunctions, they naturally reduce run-on errors and increase their overall syntactic complexity. This targeted worksheet provides the exact repetition needed to move these skills from short-term working memory into long-term automaticity. By bridging the gap between isolated grammar drills and authentic writing application, educators can ensure their students develop the robust foundational mechanics necessary for advanced academic composition.