1st Grade · Vocabulary · L.1.4.C, L.1.4.B

Suffixes and Compound Words Lesson Plan for 1st Grade

A ready-to-teach suffixes and compound words lesson for 1st Grade, built around adding suffixes (-s, -ed, -ing), identifying root words, forming compound words, breaking apart compound words. Print the plan, print the practice pages, and you are set.

Approximately 47 minutes

Learning objective

Identify and use suffixes correctly in sentences
Practice suffixes and compound words rules through targeted writing exercises
Build grammar confidence with suffixes activities

Materials

Suffixes
Adding suffixes (-s, -ed, -ing)
Root words
Words ending in -ing
Words ending in -ed
Compound words
Pencils, and whiteboard space for the modeled examples

Lesson steps

1. Build the background (5 min)
Introduce suffixes and compound words in plain language and connect it to a book the class already knows. Write the key term where students can see it all lesson. For 1st Grade, one clear sentence beats a full definition.
2. Read aloud and think aloud (I do) (10 min)
Read a short passage aloud. Stop twice and narrate your own thinking about suffixes and compound words: what you noticed in the text and what made you notice it. Students are learning the move, not the answer.
3. Guided practice (we do) (12 min)
Read a second passage together. This time students find the evidence and you record it. Push every answer back to the text with "what words told you that?"
4. Independent practice (you do) (15 min)
Hand out "Suffixes". Students read and answer on their own. Circulate and ask individuals to point to the line in the text that supports their answer.
5. Share and close (5 min)
Two or three students share an answer and the evidence behind it. Restate suffixes and compound words one final time in the students' own words, not yours.

Check for understanding

Collect the practice pages and sort them into three piles: fluent, developing, and not yet. Any student in the third pile needs suffixes and compound words retaught in a small group before the class moves on.

Differentiation

Extra support. Students who stall: pull them into a small group and rebuild suffixes and compound words with concrete materials or a simpler text before asking for the written work again. Do not send the page home as homework, it will just rehearse the misunderstanding.

Extension. Students who finish early: ask them to write their own suffixes and compound words problem for a partner to solve, then check the partner's work. Creating a problem is harder than solving one and it surfaces whether they really understand suffixes and compound words.

Skills covered in this lesson

Suffixes · Adding suffixes (-s, -ed, -ing) · Root words · Words ending in -ing · Words ending in -ed · Compound words

Questions teachers ask about teaching suffixes and compound words

Why teach suffixes and compound words together?

Both skills teach the same underlying idea: a word's meaning can be built from smaller pieces. Suffixes like -s, -ed, and -ing change a root word's meaning or tense (CCSS L.1.4b), while compound words combine two whole words into a new one, like sun and flower becoming sunflower (L.1.4c). Once a student can break a word into its parts, they can often work out the meaning of a brand-new word without ever having seen it before, which is one of the most powerful vocabulary strategies at any age.

What are the most important suffixes for first grade?

The three that show up constantly in first grade reading are -s (adds plural or present tense, like cats or walks), -ed (marks past tense, like walked), and -ing (marks an ongoing action, like walking). These three cover the majority of verb and noun changes a first grader encounters, which is why they are the focus before moving on to less frequent suffixes in later grades.

How do I help my child recognize compound words?

Start by pointing out compound words in everyday reading (backpack, playground, sunshine) and asking your child to spot the two smaller words hiding inside. Once they can identify the parts, practice going the other direction: given two words, can they combine them into a compound word, and does the combination make sense? This two-way practice, breaking words apart and building them, is exactly what the worksheets in this topic cover.