Grade 1 Suffixes — Printable No-Prep Essential Worksheet

This Grade 1 ELA worksheet helps students master the foundational skill of identifying and applying common suffixes to root words. By selecting the correct endings like -s, -es, -ed, and -ing, young learners improve their sentence structure and vocabulary comprehension. It is a vital resource for building early literacy and linguistic fluency in elementary classrooms.

At a Glance

• Grade: 1 · Subject: English Language Arts (ELA)
• Standard: CCSS.ELA-LITERACY.L.1.4.B — Use frequently occurring affixes as a clue to the meaning of a word
• Skill Focus: Identifying Suffixes (-s, -es, -ed, -ing)
• Format: 3 pages · 8 problems · Answer key included · PDF
• Best For: Independent practice or literacy center stations
• Time: 15–20 minutes

The resource consists of three clearly structured pages featuring eight sentence-completion tasks. Students are presented with sentences where the root word is missing its suffix, followed by a choice between two relevant options such as "-s" versus "-es" or "-ed" versus "-ing." The layout is clean, making it ideal for first-graders developing their reading stamina. A comprehensive answer key is included.

Zero-Prep Workflow

Implementing this worksheet into your daily routine is exceptionally efficient, requiring under 2 minutes of teacher preparation. First, print the necessary copies (30 seconds). Next, distribute them to your students during your literacy block or morning work session (30 seconds). Finally, review the answers as a whole group or use the provided key for individual grading (1 minute). Its straightforward design also makes it a perfect addition to any emergency substitute teacher plan.

Standards Alignment

The primary focus of this worksheet is CCSS.ELA-LITERACY.L.1.4.B, which requires students to "use frequently occurring affixes as a clue to the meaning of a word." By practicing with inflected endings, students also touch upon CCSS.ELA-LITERACY.L.1.1, developing their understanding of grammar and usage in writing. Both standard codes can be copied directly into lesson plans, IEP goals, or district curriculum mapping tools.

How to Use It

Use this worksheet during the "You Do" phase of a gradual release lesson on word endings. It serves as an excellent formative assessment to check if students can distinguish between plural markers and tense indicators in context. Another effective use case is placing it in a literacy center; provide an anchor chart on suffixes nearby, and observe whether students can apply the rules independently to complete the eight varied sentence prompts.

Who It's For

This resource is designed for first-grade students, but it also serves as a valuable intervention tool for second-graders needing a refresher on inflectional endings. It supports English Language Learners by providing clear contextual clues within each sentence. Pair this worksheet with a short reading passage that emphasizes verbs and plural nouns to help students see these linguistic patterns in authentic, long-form text.

Morphological awareness, specifically the ability to manipulate suffixes, is a primary predictor of reading comprehension success in the early grades. This worksheet targets the CCSS.ELA-LITERACY.L.1.4.B standard by requiring students to identify and apply inflected endings like -ed and -ing to familiar root words. According to a RAND AIRS 2024 report, explicitly teaching these sub-lexical structures significantly accelerates vocabulary acquisition for diverse learners. By engaging with these 8 structured tasks, students move beyond simple word recognition to understanding how word parts alter meaning and function. This systematic approach aligns with evidence-based instructional practices that emphasize the science of reading. The inclusion of multiple page formats and a clear answer key ensures that teachers can implement high-quality, research-backed practice with minimal administrative burden. This resource bridges the gap between isolated phonics instruction and integrated linguistic application, fostering long-term academic growth in primary English Language Arts.