One More Sheet.

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 written as a capital. Kindergartners pick the correctly written sentence from lookalikes, training their eyes on the very first letter.

Free printable PDF, aligned to Common Core L.K.2.a. One skill per page, answer key on page two.

Every sheet is one of a kind and prints with a version code, so you can reprint the exact same one later. New version every click.

A sample kindergarten sheet. Yours will have different sentences. Click it to print your own.

The kind of sentences you'll fix

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

  1. the bird sang to us.

    Fixed: The bird sang to us.

  2. a bug sat on a leaf.
  3. we cut and glue.

Every print draws a fresh mix of sentences at this level, so a make-up test or a second sibling gets a different sheet.

What's on each sheet

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 option 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 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.

Related worksheets

Ready to print one?

One page, answer key included. A fresh version every time you click.

Aligned to Common Core L.K.2.a. Reviewed by the One More Sheet curriculum team. Content version 68, updated July 2026.