Grade 3 Suffixes — Printable No-Prep Worksheet

This worksheet gives Grade 3 students focused practice with comparative and superlative suffixes (-er, -est). Through 12 structured problems, students will strengthen their ability to form and use adjectives correctly, a foundational skill for descriptive writing and clear communication. The tasks are designed to be completed quickly and independently.

At a Glance

• Grade: 3 · Subject: English Language Arts (ELA)
• Standard: CCSS.ELA-LITERACY.L.3.1.g — Form and use comparative and superlative adjectives and adverbs.
• Skill Focus: Comparative and Superlative Suffixes (-er, -est)
• Format: 1 page · 12 problems · Answer key included · PDF
• Best For: Independent practice, station work, or homework
• Time: 10–15 minutes

A Quick and Easy Classroom Resource

This single-page PDF includes two distinct tasks. First, students select the correct comparative or superlative form from a list. Second, they rewrite root words by adding suffixes (-ful, -less, -er, -est). An answer key is included on a separate page for efficient grading or self-correction.

Designed for the busy teacher, this worksheet is a true print-and-go activity. Here’s a simple workflow:

• Print (1 min): The resource is a single PDF. Print one for each student.
• Distribute (1 min): The clear instructions allow students to begin work immediately. It's a perfect resource for substitute plans or quick grammar review.
• Review (5 mins): Use the answer key to review as a class or for student self-checking.

Total prep time is under two minutes.

Standards-Aligned for Your Classroom

This worksheet is directly aligned with a key Grade 3 Common Core standard:

• CCSS.ELA-LITERACY.L.3.1.g: Form and use comparative and superlative adjectives and adverbs, and choose between them depending on what is to be modified.

This alignment ensures the practice is relevant and targeted. The standard code can be copied directly into lesson plans or curriculum maps.

How to Use This Worksheet

This resource works well as independent practice following a mini-lesson on adjectives and suffixes. Students should be able to complete the 12 problems in about 10-15 minutes. It can also be used as a quick formative assessment. As you circulate, note which students struggle with specific suffix rules, helping you identify topics for small-group reteaching.

Who It's For

This activity is built for third-grade students learning about suffixes. The clean layout and visual supports make it accessible for diverse learners, including ELLs. It pairs well with a classroom anchor chart that shows common suffix rules and examples.

This resource provides targeted practice aligned with CCSS.ELA-LITERACY.L.3.1.g, which requires students to form and use comparative and superlative adjectives. Mastering this skill is crucial for developing descriptive writing and precise language. Research highlights that explicit instruction in morphology—the study of word parts like suffixes—is a high-impact strategy for building vocabulary and reading comprehension. According to a comprehensive analysis by Fisher & Frey (2014), direct instruction in word parts gives students the tools to decode unfamiliar words and understand complex texts. This worksheet provides the focused, independent practice necessary to reinforce that direct instruction. By engaging with 12 distinct problems, students move from recognizing patterns to actively constructing new words, solidifying their understanding of how suffixes function in the English language and preparing them for more advanced grammatical concepts.