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.

By grade

What students need to know

Every sentence starts with a capital letter, and the word I is always a capital: Sam and I play tag.

This skill runs from kindergarten through 1st grade. Pick a grade above for level-matched sentences, teaching notes, and worksheets.

Capitalizing Sentences and I across the grades

Kindergarten

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.

1st Grade

First graders apply both rules automatically in their own writing and catch the classic slips: a sentence that starts small, a lowercase i, or a stray capital in the middle of a sentence. Choosing the correct version from near-twins builds the editor's eye.