Simple, Compound, and Complex Sentences Homework

3rd Grade ELAGrammar and Language4 pages

About this worksheet

Simple, compound, and complex sentences get a reminder box and then three sections of practice on this 4-page 3rd grade homework sheet. Students label eight sentences S, C, or CX and write the conjunction. They combine five pairs of sentences using so, but, because, although, and and. Last, they write three sentences of their own about an evening at home. It covers L.3.1.h and L.3.1.i. The answer key includes the labeled table and accepts two orders for the complex sentences.

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Page 1 of 4

Simple, Compound, and Complex Sentences Homework: Grammar and Language - page 1
Simple, Compound, and Complex Sentences Homework: Grammar and Language - page 2
Simple, Compound, and Complex Sentences Homework: Grammar and Language - page 3
Simple, Compound, and Complex Sentences Homework: Grammar and Language - page 4

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Curriculum objectives covered

L.3.1.h

“Use coordinating and subordinating conjunctions.”

The conjunction column in Section 1 and all of Section 2, where each pair must be joined with the given conjunction.

L.3.1.i

“Produce simple, compound, and complex sentences.”

Labeling sentences 1 to 8 as S, C, or CX, and writing one of each type in Section 3.

What's inside this worksheet

Quick Reminder

Definitions of each sentence type, with coordinating conjunctions (and, but, so, or) and subordinating ones (because, although, if, since).

Section 1 Spot the Sentence

A table of eight sentences, from "The dog barked loudly at the mail carrier." to "Since we finished our homework, we played board games." Students mark the type and write the conjunction or "none."

Section 2 Sentence Builder

Five pairs to combine with the conjunction in parentheses, such as a sleepy cat that chases the laser pointer anyway (although).

Section 3 My Evening at Home

Students write a simple sentence about after school, a compound sentence about dinner with and or but, and a complex sentence about bedtime with because or although.

How teachers use it

Homework night

Send it home after you have taught all three types. Sections 1 and 2 take about 20 minutes, and Section 3 gives families a look at their child's evening routine in writing.

Common mix-up

Sentence 6 has a long subject, "The bright yellow school bus," and many students call it compound because it feels long. Point out that no conjunction joins two thoughts.

Comma check

In Section 2, look for the comma before so, but, and and. Students who leave it out on 9, 10, and 13 need a quick review of compound sentence punctuation.

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