Morphology Unit 3: Inflectional Suffixes
- Jackie K.
- Oct 22
- 3 min read
Updated: Oct 30
Our first suffixes of the year!
At this point in the year, students learned parts of speech, homophones, and critical foundational terms. We are finally ready to learn some suffixes! This unit complements my -ed x3 phonology Unit. My data demonstrates that the majority of my students don't know the three pronunciations of -ed.
As mentioned in my last Interactive Unit Guide, I think teaching suffixes according to their derivations, rather than their abstract definitions,

is more meaningful for students. When planning this curriculum, I asked myself, "What do I actually do in real life? What is realistic for students to do?" I realized that when I came across a word with -ion, for example, I rarely thought, "Oh, this is the state of...". No. I thought, "Okay, this is some kind of thing." That at least gets me in the ballpark, and I think with students, that's my goal. Let's get them in the ballpark when trying to define an unfamiliar word, because honestly, that's what's realistic. If they can at least say, "Yup, I'm pretty sure it's a thing [or action or descriptive]," then they can get the gist of the sentence.
Note that several of these suffixes have more than one meaning. s/-es, -ed, -ing, and -er/or have an inflectional and derivational definition. I am only teaching the inflectional meaning during this unit. The derivational meanings will be taught in subsequent units. See here for my morpheme sequence chart.
You can grab the printable Unit Plan here. While students work independently, I use this time to provide targeted phonemic awareness instruction. Below is the interactive Foundations Unit Plan where you can find tons of helpful links. Each blog post will include the typical grouping, methodology, suggested duration, and rationale. I included the objectives in the chart to give you a quick overview. The PDF column will take you to directly to TPT.
Inflectional Suffixes Mastery Goal:
Define and identify
morphemes -s/-es, -ed, -ing, -est, -er/or, -less.
Day | Blog Posts | The PDFs | Objectives | |
tool | None | Provide the instructor with a bank of words for instruction. | ||
None | Phonology Full Period | |||
1-2 | Use inquiry to develop shared definitions of targeted morphemes. | |||
3-5 | Identify, define, and analyze terms with targeted morphemes using morphemic segmentation. | |||
6 | SLAM! | Enhance comprehension of key vocabulary through word generation, comparison, and contextual application in a competitive format. | ||
7-8 | Apply morphemic segmentation to identify, define, and analyze words with targeted morphemes as they appear in a passage. | |||
9 | Review morphemes to build automaticity. | |||
10 | Define vocabulary terms in a competitive format. | |||
11 | Review morphemes to build automaticity. Apply context clues and morphological knowledge to complete cloze sentences. | |||
12-13 | Enhance comprehension of key vocabulary with targeted morphemes through word generation, morphological comparison, and contextual application. | |||
Phonology Quiz | ||||
14 | Generate concise definitions (1–2 words) for vocabulary terms containing targeted morphemes | |||
15 | Review content in preparation for the quiz. | |||
15 | How To: Morphology Quizzes | Assess understanding of the unit objective. | ||
Daily | How To: Phonemic Awareness | None | Develop phonemic awareness. | |
Any | None | Apply morphological knowledge to build words. |






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