Which capital rules come first?

The two on this page: sentences start with a capital, and I is always capital. They cover most of what a kindergarten writer needs, and both are visible at a glance, which makes them ideal first proofreading targets.

My child writes in all capitals. Is that a problem?

It's common and temporary; capitals are easier to form. Keep modeling lowercase and gently request it in practice, but don't panic. The skill on this sheet, noticing which letters should be tall, actually helps the transition along.

Kindergarten capitalizing sentences and I

Kindergarten capitalizing sentences and I worksheets

Two capital rules start it all: the first word of every sentence gets a capital letter, and the word I is always a capital. Kindergartners fix sentences that start small, or pick the correctly written one from lookalikes.

Free printable PDF worksheet, aligned to Common Core L.K.2.a.

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

The kind of sentences you'll fix

Cross out each small letter that should be a capital, and write the capital above it.

the bird sang to us.
Fixed: The bird sang to us.
a bug sat on a leaf.
we cut and glue.

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

What's on a kindergarten sheet

Kindergarten sheets draw from 60 sentences, 5 to a page. Kindergarten and 1st grade print from the same 60 sentences. What changes is the standard (L.K.2.a here) and the teaching notes below. 1st grade sheets print 6 to a page.

A few of the sentences, as the answer key corrects them:

The hen sat on eggs.
The corn is hot.
Kim and I run laps.

Fix it. Cross out each small letter that should be a capital, and write the capital above it. 5 sentences to fix per page.
Choose the sentence. Circle the letter of the sentence with the correct capital letters. 5 questions per page.

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

How to teach this

Point to the first letter of each sentence and ask, tall or small? At this age the skill is visual, so keep the question concrete. When your child writes, a gentle "check your first letter" habit at the end of each sentence plants the proofreading routine early.

Watch for: Only the first word gets the starting capital; the other words stay small unless they're names. The word I is capital even in the middle of a sentence.

Common questions about kindergarten capitalizing sentences and I

Which capital rules come first?: The two on this page: sentences start with a capital, and I is always capital. They cover most of what a kindergarten writer needs, and both are visible at a glance, which makes them ideal first proofreading targets.
My child writes in all capitals. Is that a problem?: It's common and temporary; capitals are easier to form. Keep modeling lowercase and gently request it in practice, but don't panic. The skill on this sheet, noticing which letters should be tall, actually helps the transition along.

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Aligned to Common Core L.K.2.a. Reviewed by the One more sheet team. Content version 241, updated October 2026.

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