Capitalizing sentences and I worksheets

By grade

• Kindergarten Right on level
• 1st Grade A step harder

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 a capital. Kindergartners pick the correctly written sentence from lookalikes.

1st grade

First graders catch the classic slips (a sentence that starts small, a lowercase i, a stray capital mid-sentence) by choosing the correct version from near-twins, which builds the editor's eye.