Identify Suffixes Worksheet | Grade 1 Printable ELA

This Grade 1 Identify Suffixes worksheet provides targeted practice for students learning to apply inflectional endings to base words. By choosing the correct suffix to complete sentences, young learners strengthen their decoding skills. This essential resource ensures students can accurately identify and use common word endings like -ed and -ing in context.

At a Glance

• Grade: 1 · Subject: English Language Arts
• Standard: CCSS.ELA-LITERACY.L.1.4.C — Identify frequently occurring root words and their inflectional forms in text
• Skill Focus: Common Suffixes (-s, -es, -ed, -ing)
• Format: 3 pages · 8 problems · Answer key included · PDF
• Best For: Literacy centers and morning work sessions
• Time: 15–20 minutes

This PDF features 8 structured problems across two parts. Students encounter fill-in-the-blank sentences where they select between two suffix options. The worksheet includes helpful tips for tricky endings, specifically noting when to use "-es" for words ending in "ch" or "s." A full answer key is included for rapid grading.

Zero-Prep Workflow

• Print (30 seconds): Print the three-page set for each student in the class.
• Distribute (1 minute): Hand out the worksheets and review the suffix rules at the top of page one.
• Review (2 minutes): Use the provided answer key to check student work and provide immediate feedback.

This workflow makes it an ideal choice for emergency sub plans or last-minute literacy block adjustments.

Standards Alignment

The primary focus is `CCSS.ELA-LITERACY.L.1.4.C`: identify frequently occurring root words and their inflectional forms. Practicing with words like "cook" and "lunch" helps students demonstrate mastery of how suffixes alter word meaning. This standard code can be copied directly into lesson plans, IEP goals, or district curriculum mapping tools.

How to Use It

Ideal for independent practice following a lesson on inflectional endings. Use it as a formative assessment to check pluralization and verb tense rules. Observe students as they complete Task 6 to see if they apply the "ch" rule. Expect completion in 15 to 20 minutes.

Who It's For

For Grade 1 students, or Grade 2 students needing a review of basic morphological structures. It serves as an excellent resource for English Language Learners. Pair this worksheet with an anchor chart displaying common suffix rules for a comprehensive literacy experience.

Research emphasizes that explicit instruction in morphology, including the use of common suffixes, significantly improves reading comprehension and spelling accuracy in early elementary students. According to Fisher & Frey (2014), the gradual release of responsibility model—moving from guided 'Source Practice' to independent 'More Suffix Fun'—is vital for internalizing these linguistic patterns. This worksheet aligns with CCSS.ELA-LITERACY.L.1.4.C by requiring students to recognize root words and their varied forms, a skill that serves as a foundational building block for future vocabulary acquisition. By engaging with 8 distinct problems, learners move beyond rote memorization toward contextual application of suffixes like -ed and -ing. This approach reflects the NAEP findings that emphasize the importance of morphological awareness in developing fluent readers. The structured format allows teachers to quickly identify students who may need additional scaffolding or intervention before moving toward more complex multi-syllabic word structures and advanced academic vocabulary.