What are coordinating conjunctions for a 2nd grader?

The joining words: and, but, or. And glues two ideas that agree, but joins two that pull apart, or offers a pick between them. Second graders just need those three jobs; the fancier terms can wait.

How can my child tell whether to use "and" or "but"?

Ask whether the two halves point the same way. "I like dogs ___ I like cats" points the same way: and. "I like dogs ___ my brother is scared of them" pulls apart: but. Reading both halves before choosing is the whole skill.

2nd grade coordinating conjunctions

2nd grade coordinating conjunctions worksheets

Coordinating conjunctions are the small joining words: and adds ideas together, but points out a difference, or offers a choice. Second graders pick the joiner that fits the meaning of the sentence.

Free printable PDF worksheet, aligned to Common Core L.1.1.g.

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

The kind of sentences you'll get

Circle the letter of the joining word that fits the sentence.

Should we stay inside splash in the puddles? or · but · and
Answer: or
The robin the sparrow are building nests in the tall oak. and · or · but
Both my mom my dad love to bake. and · but · or

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 2nd grade sheet

2nd grade sheets draw from 60 sentences, 8 to a page. None of these sentences are on 1st grade sheets. 1st grade sheets print 10 to a page.

A few of the sentences:

The puppy and the kitten are napping in the same basket.
Grandpa looked for his glasses, but they were on his head.
Mia sharpened her pencil, and then she began her test.

Choose the word. Circle the letter of the joining word that fits the sentence. 8 questions per page.

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

How to teach this

Frame each conjunction as a job: and is the adder, but is the difference-spotter, or is the chooser. Read the sentence twice with different joiners and ask which one tells the truth about the two ideas. That "tells the truth" framing works better with 7-year-olds than talking about clauses.

Watch for: The conjunctions aren't interchangeable: 'I fell and I laughed' tells a different story than 'I fell, but I laughed'. Because is a joining word too, but it isn't a coordinating conjunction. The core set here is and, but, or, so, yet.

Common questions about 2nd grade coordinating conjunctions

What are coordinating conjunctions for a 2nd grader?: The joining words: and, but, or. And glues two ideas that agree, but joins two that pull apart, or offers a pick between them. Second graders just need those three jobs; the fancier terms can wait.
How can my child tell whether to use "and" or "but"?: Ask whether the two halves point the same way. "I like dogs ___ I like cats" points the same way: and. "I like dogs ___ my brother is scared of them" pulls apart: but. Reading both halves before choosing is the whole skill.

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Aligned to Common Core L.1.1.g. Reviewed by the One more sheet team. Content version 240, updated October 2026.

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