How does this sheet build on the short-i families?

The -ock column continues the ck story: after a short vowel, the k sound ends in ck (kick, sock, duck). Meeting the same rule with a new vowel turns a one-off observation into a real pattern.

My child reads hot as hat. What helps?

Family sorting, exactly. Hot lives in a column that rhymes with pot and dot; hat lives with cat and bat. When words belong to neighborhoods, the vowels stop being interchangeable, and the rhyme catches the error instantly.

1st grade short o word families

1st grade short o word families worksheets

Short o is the friendliest vowel sound to isolate, which makes these families (-op, -ot, -ock) a confidence builder. First graders sort quickly, meet a silent letter in knock, and reinforce the ck ending they saw with short i.

Free printable PDF worksheet, aligned to Common Core RF.1.3.

Each print is a different sheet with its own answer key. You don't need to sign up.

The kind of words you'll sort

Say each word. Write it under its family.

chopcopknockflockdockdropshotdotshockpottopgot

Columns: -op and -ot and -ock. "drop" belongs under -op; "got" belongs under -ot; "flock" belongs under -ock.

Every print pulls a new set of words at this level, so a make-up test or a second sibling gets a different mix.

What's on a 1st grade sheet

1st grade sheets draw from 34 words, 15 to a page. Kindergarten and 1st grade print from the same 34 words. What changes is the standard (RF.1.3 here) and the teaching notes below.

Some of the words:

plopcropnotjotspottrotrocksockblockclock

Sorting. Say each word. Write it under its family. 15 words per page.

Every version prints on US Letter or A4, with its answer key on the last page.

How to teach this

Race the sort, then reverse it: name the family and ask for members with eyes closed. The -ock column extends the ck rule from the short-i sheet, and a quick "why do sock and stick both end in ck?" makes the pattern conscious.

Watch for: Knock keeps a silent k at the front, but its ending still sorts it into the -ock family. The word not is a family word here, nothing more: -ot like hot and pot.

Common questions about 1st grade short o word families

How does this sheet build on the short-i families?: The -ock column continues the ck story: after a short vowel, the k sound ends in ck (kick, sock, duck). Meeting the same rule with a new vowel turns a one-off observation into a real pattern.
My child reads hot as hat. What helps?: Family sorting, exactly. Hot lives in a column that rhymes with pot and dot; hat lives with cat and bat. When words belong to neighborhoods, the vowels stop being interchangeable, and the rhyme catches the error instantly.

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Aligned to Common Core RF.1.3. Reviewed by the One more sheet team. Content version 241, updated July 2026.

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