Search Printable 3rd Grade Common Core Grammar and Mechanic Worksheets

Create your own crazy story with this fill-in-the-blank story! Your budding writer will practice parts of speech as he fills in missing parts of the story.

Grammar enthusiasts and baseball fans will enjoy identifying the adjectives—and the nouns they describe—in this engaging parts of speech worksheet.

Children practice adding adjectives to sentences and words in this parts of speech worksheet.

In this worksheet, learners will change the meanings of 20 words by adding the prefixes dis-, -re, or -un to them.

This goal setting worksheet is a great way for your child to identify measurable goals and make a plan for how to achieve them!

In this worksheet, learners will practice identifying the verb that agrees with the subject, then complete the sentences.

Learning plural nouns is a challenge! If your child is having trouble remembering the plural forms of different nouns, this worksheet is key.

Learners practice using pronouns in context in this fill-in-the-blanks grammar worksheet.

Use this irregular verbs worksheet to give your child some irregular verbs exercises that will help develop her grammar skills and improve her writing.

Become a prefix superhero with this fun worksheet! Children will flex their power to create new words by combining prefixes with words they already know using a handy prefix word bank with definitions.

In this playful grammar worksheet, learners will find and circle the adverb in 10 sentences.

This worksheet offers engaging practice for students as they learn to conjugate and use irregular past-tense verbs.

Go on a crazy camping adventure with this fill-in-the-blanks story! Your student can practice their parts of speech as they fill in the missing words.

Help clear up the pronoun confusion by having your third grader practice replacing sentence subjects with the pronouns that go with them.

Boost your third grader's pronoun savvy with an exercise in replacing objects with their pronouns.

Help your third grader hone her punctuation skills with this worksheet that explains how to use commas in dates and addresses.

Learners embrace the present in this fun grammar worksheet!

Use this worksheet to practice determining the meaning of the new word formed when a prefix is added to a base word.

Children will practice identifying and writing calendar days and dates in January in this engaging calendar math worksheet.

Children practice creating contractions in this engaging grammar worksheet.

Children learn how to create singular possessive nouns using apostrophes in this grammar and mechanics worksheet.

This worksheet offers helpful practice for students as they learn to correctly identify and use adverbs in sentences.

This subject and predicate worksheet challenges kids to find the subjects and predicates in text. Use this subject and predicate worksheet with your child.

In this practice worksheet, children develop their punctuation skills as they correct five sentences and rewrite five more.