Inflectional Endings -ed/-ing | Essential Grade 1 Phonics

This Grade 1 inflectional endings worksheet provides students with targeted practice in identifying the correct spelling of words when adding -ed and -ing suffixes. By choosing between two options for 10 different base words, learners develop a stronger grasp of root words and morphological changes. It is a foundational tool for early literacy success.

At a Glance

• Grade: 1 · Subject: ELA
• Standard: CCSS.ELA-LITERACY.L.1.4.C — Identify frequently occurring root words and their inflectional forms
• Skill Focus: Inflectional endings (-ed, -ing)
• Format: 1 page · 10 problems · Answer key included · PDF
• Best For: Independent practice or quick formative assessment
• Time: 10–15 minutes

This single-page PDF features 10 multiple-choice questions focusing on common verbs. Each item presents a base word and asks the student to select the correctly spelled version with an added suffix. The layout is clean and distraction-free, including a header for student names and grades, making it easy to collect and grade. The worksheet covers various spelling rules, including doubling consonants and dropping the silent 'e'.

Teachers can implement this resource in under two minutes. First, print the required number of copies for your literacy block. Second, distribute the sheets to students as a "bell ringer" or center activity. Finally, use the included answer key to review responses in less than sixty seconds, providing immediate feedback to your young learners. This zero-prep workflow makes it an ideal choice for substitute teacher folders.

Standards Alignment

The primary focus is `CCSS.ELA-LITERACY.L.1.4.C`, which requires students to identify root words and their inflectional forms. It also supports `CCSS.ELA-LITERACY.RF.1.3.F` by helping students read words with inflectional endings. Both standard codes can be copied directly into lesson plans, IEP goals, or district curriculum mapping tools to ensure instructional compliance.

How to Use It

Use this worksheet during the "You Do" phase of a gradual release lesson on suffixes. It serves as an excellent formative assessment after a mini-lesson on doubling consonants or dropping the silent 'e'. Expect students to complete the 10 tasks within 10 to 15 minutes during a dedicated phonics rotation. Observe students as they work to identify those struggling with the specific spelling changes required for different root words.

Who It's For

This resource is designed for first-grade students or advanced kindergartners working on word patterns. It is particularly helpful for English Language Learners (ELLs) who need visual reinforcement of how word endings change. Pair this with a suffix anchor chart or a word-sorting activity for a comprehensive literacy experience that supports diverse learning needs in the general education classroom.

According to the RAND AIRS 2024 report on foundational literacy, explicit instruction in morphology and inflectional endings is a critical predictor of later reading fluency and comprehension. This worksheet aligns with evidence-based practices by isolating the -ed and -ing suffixes, allowing students to focus on the structural changes of root words without cognitive overload. Research from Fisher & Frey (2014) emphasizes that short, focused practice sessions are more effective for retention in early elementary grades than long, complex assignments. By providing 10 clear examples, this resource ensures that students encounter enough variety—such as CVC doubling and silent 'e' rules—to build a mental model of English spelling conventions. The CCSS.ELA-LITERACY.L.1.4.C alignment ensures that the content meets rigorous national expectations for Grade 1 language development. This tool is a reliable asset for any evidence-based phonics curriculum or intervention program.