How do students pick between because and although?

By expectation. If the second half is what you'd predict from the first, the link is because: it rained, so indoors. If the second half defies the setup, it's although: practiced daily, yet still nervous. One question, expected or surprising, settles it.

Why does "since" cause trouble?

It moonlights: since can mean because (since you're here, help me) or mark time (since Monday). Our practice items use it only in the causal sense to keep answers clean, and the time job stays with until, before, and after where it's unambiguous.

4th grade subordinating conjunctions

4th grade subordinating conjunctions worksheets

Fourth graders work the fuller set (since, unless, though) and sharpen the contrasts: because versus although is the reason-versus-surprise fork, until versus while splits the timing. Reading the whole sentence before choosing is the skill.

Free printable PDF worksheet, aligned to Common Core L.3.1.h.

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The kind of sentences you'll get

Circle the letter of the joining word the sentence's logic needs.

the coach explained the play, we took notes. While · Whether · Unless
Answer: While
The library stays open late exams start this week. unless · although · because
Stay on the path the cliffs are steep. while · although · because

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 4th grade sheet

4th grade sheets draw from 80 sentences, 10 to a page. All 60 of 3rd grade's sentences are here too, plus 20 more.

Some of the answers:

AlthoughuntilIfbeforeAfterunlessSince

Choose the word. Circle the letter of the joining word the sentence's logic needs. 10 questions per page.

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

How to teach this

The productive struggle at this level is because versus although. Ask: does the second half follow naturally from the first (because), or does it push back against what you'd expect (although)? "Although Kenji practiced daily, he felt nervous" earns its although from the surprise. Add unless as if's negative twin once the core set is steady.

Watch for: Each conjunction names a different relationship, so they aren't swappable: because gives a reason, although signals a surprise, until marks time. Starting a sentence with because is fine, as long as the main idea follows: 'Because it rained, we stayed in.'

Common questions about 4th grade subordinating conjunctions

How do students pick between because and although?: By expectation. If the second half is what you'd predict from the first, the link is because: it rained, so indoors. If the second half defies the setup, it's although: practiced daily, yet still nervous. One question, expected or surprising, settles it.
Why does "since" cause trouble?: It moonlights: since can mean because (since you're here, help me) or mark time (since Monday). Our practice items use it only in the causal sense to keep answers clean, and the time job stays with until, before, and after where it's unambiguous.

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Aligned to Common Core L.3.1.h. Reviewed by the One more sheet team. Content version 241, updated October 2026.

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