Word Families
- Kindergarten
- 1st grade
- CCSS RF.K.2c
- CCSS RF.K.2e
A word family is a group of words that end with the same chunk. cat, hat, bat and mat are all in the -at family. Change the first sound, keep the chunk, and you get a new word.
What is a word family?
Every short word can be split into two parts: the first sound (teachers call it the onset) and the chunk that follows (the rime). In hat, h is the first sound and -at is the chunk. Words with the same chunk rhyme and belong to the same family.
Word families help kids read faster. Once a child knows -at, they can read bat, cat, fat, hat, mat, pat, rat, sat just by changing the first letter. They're also the bridge between hearing rhymes and reading CVC words.
first sound + family chunk
h + at = hat b + ig = big
The kindergarten standards ask kids to blend and split the first sound and the chunk (RF.K.2c) and to swap sounds to make new words (RF.K.2e). Word families practice both.
Common word families
Six families cover most of the words beginning readers meet.
| Family | Words |
|---|---|
| -at | bat, cat, fat, hat, mat, pat, rat, sat |
| -an | can, fan, man, pan, ran, tan, van |
| -ig | big, dig, fig, jig, pig, wig |
| -op | hop, mop, pop, top, stop, shop |
| -ug | bug, hug, jug, mug, rug, tug |
| -et | bet, get, jet, let, met, net, pet, wet, yet |
Some words in these lists, like stop and shop, start with two letters. They're still in the family; the first sound is just a blend or a digraph.
Word families in sentences
The family chunk is highlighted. Read each sentence and listen for the rhyme.
- The cat has a hat.
- A man ran to the van.
- The big pig can dig.
- Hop to the top.
- A bug is on the rug.
- My pet got wet.
- Get the mop.
- The fan is in the pan.
- A rat sat on a mat.
- Give the mug a hug.
Silly sentences are fine. Kids remember the family better when it makes them laugh.
How to teach word families
Five short steps, about 10 minutes each.
- Rhyme out loud. Say cat, hat, bat. Ask what's the same. Then let your child add one more.
- Make a family house. Draw a house with -at on the roof. Your child writes family words in the windows.
- Flip the first letter. Write -at on a card and use letter cards in front: b, c, h, m. Read each word.
- Real or silly? Try every letter: bat, cat, dat. Decide if each is a real word.
- Mix two families. Sort word cards into -at and -an. This makes your child look past the first letter.
Common mistakes and how to fix them
| Mistake | Why it happens | How to fix it |
|---|---|---|
| Reads cap as cat | Reading only the first letters. | Cover the first letter and read the chunk first: -at. Then add c. |
| Thinks hot is in the -at family | Hearing only the last sound. | The whole chunk has to match: -ot isn't -at. |
| Can read families but not mixed words | Relying on the pattern. | Mix two or three families together so your child reads each word. |
| Spells fan as fen | Short a and e mix-up. | Say the family chunk first: -an. Then add f. |
Practice: word families quiz
10 questions. Your child can tap the speaker to hear a question read aloud. The first try on each question counts toward the score.
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1.Which word is in the -at family?
Show answer
hat.
-
2.Which word is in the -ig family?
Show answer
pig.
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3.Which word does not belong? bug, rug, hug, bag
Show answer
bag. It ends in -ag.
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4.Add m to -op.
Show answer
mop.
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5.Tap the two words in the same family.
.
Show answer
fan and van: the -an family.
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6.Which word rhymes with net?
Show answer
wet.
-
7.What family is jug in?
Show answer
-ug.
-
8.Tap the two words in the same family.
.
Show answer
big and pig: the -ig family.
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9.Which is a real word in the -an family?
Show answer
can.
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10.What do words in a family share?
Show answer
the same ending chunk.
Word Families worksheet (free PDF)
Word Families Worksheet, Kindergarten–1st grade
Build words in the -at and -ig families, sort words into families, find the word that doesn't belong and write a rhyme. Prints on US Letter paper, with an answer key.
Download the PDFTry it at home
- Rhyme time: in the car, pick a family and take turns adding words.
- Family of the week: post -at on the fridge and add words all week.
- Silly sentences: "The fat cat sat on a hat."
- Real or silly: try every letter in front of a chunk.
- Books: rhyming books are full of word families.
What comes next
Next, kids learn consonant blends like st and fl, then digraphs like sh and ch. See all skills on the kindergarten and 1st grade pages, or browse all phonics lessons.
Last reviewed: November 11, 2026
Questions parents ask
What are word families?
Groups of words that share an ending chunk and rhyme, like cat, hat and bat in the -at family.
What are the most common word families?
-at, -an, -ig, -op, -ug and -et are some of the most common for beginning readers.
What grade learns word families?
Kindergarten and 1st grade. The kindergarten standards ask kids to blend first sounds with chunks (RF.K.2c) and swap sounds to make new words (RF.K.2e).
Are word families the same as rhyming words?
Words in a family rhyme, but not all rhymes are in the same family. Blue and shoe rhyme but are spelled differently.
Should my child only practice one family at a time?
Start with one, then mix two or three. Mixing makes your child look at the whole word instead of guessing from the pattern.