Khan Academy
Khan Academy: Commas and Introductory Elements
Basically, you can use commas at the beginning of sentences to set up an introduction.
Grammarly
Grammarly Blog: Run on Sentences
Rules and examples for using commas when writing a complex sentence.
Grammarly
Grammarly Blog: Unnecessary Comma in a Complex Sentence
Rules and examples for using commas when writing a complex sentence.
Sophia Learning
Sophia: Cool, Cool Commas
This tutorial focuses on 4 basic comma rules that cover 85% of all comma use: series, compound sentences, direct address, and introductory clauses. It provides an audio clip explaining these 4 rules and 5 short slide shows: one for each...
California State University
California State University Domingues Hills: Comma Usage: Introductory Phrases
This fifteen-item worksheet will help you determine how well you understand how to use commas with introductory elements in a sentence.
Towson University
Towson University: Online Writing Support: Comma
This entry focuses on the rules for comma use including listing the uses, explaining the rules, and providing detailed examples.
Sophia Learning
Sophia: Commas With Introductory Elements: Lesson 1
This lesson introduces how to use commas with introductory elements. It is 1 of 3 in the series titled "Commas with Introductory Elements."
Sophia Learning
Sophia: Using Sentence Structure (Part of Speech)
This slideshow lesson focuses on using sentence structure and parts of speech to determine the meaning of unfamiliar words. It explains how to look for parentheses or commas after unfamiliar words to help determine meaning; it also shows...
Robin L. Simmons
Grammar Bytes: Commas: Exercise 1
This is a 20-question quiz for comma usage; it includes an interactive quiz or a PDF downloadable/printable quiz. Students select the best answer to correct the problem in each sentence from the two options given.
Grammarly
Grammarly Blog: Comma Use Around Interrupters
This page focuses on the need for commas around interrupters in sentences and provides examples. Common interrupters include in fact, to say the least, however, generally speaking, sadly, happily, and unfortunately. Nouns of address can...
PBS
Pbs Learning Media: Using Punctuation for Breaks and Pauses
Punctuation indicates how one should read any sentence. Commas, for example, indicate when a reader should take a brief pause, either for emphasis or for comprehension. [0:40]
Grammar Tips
Commas With Compound Sentences
This clearly worded guide clearly explains how to use commas in compound sentences.
Other
Rhl School: Commas in Direct Address
Look at examples and practice using commas correctly in sentences with nouns of direct address.
TES Global
Blendspace: Sentence Types and Comma Rules
A 21-part learning module including links to texts, images, videos, exercises, and websites on simple, compound, and complex sentences and their rules for comma use.
Grammarly
Grammarly Blog: Comma After Introductory Clauses
Rules and examples for using commas correctly with an introductory clause.
Sophia Learning
Sophia: Commas and Coordination
This lesson introduces how to use commas with coordinating clauses and conjunctive adverbs.
Khan Academy
Khan Academy: Using Semicolons and Commas
Identify when to use semicolons and commas in complex sentences.
Online Writing Lab at Purdue University
Purdue University Owl: Commas vs. Semicolons in Compound Sentences
This lesson presents information on the use of the comma and semicolon in a compound sentence. A link will take you to an interactive exercise that applies the mechanics content. L.9-10.2a Punc/Indep Clause
Quia
Quia: Commas Galore
An interactive quiz game where students are asked to choose the sentence that uses commas correctly. Answer twelve increasingly difficult questions in order to win the game but be careful. Incorrect answers will send the player back to...
ClassFlow
Class Flow: Comma's Worksheet (Coordinate Adjectives Part 1)
[Free Registration/Login Required] Use this worksheet to practice rewriting sentences to separate coordinating adjectives with a comma.
English Worksheets Land
English Worksheets Land: Commas With Introductory Phrases [Pdf]
Practice placing commas after introductory elements in ten sentences.
Texas Education Agency
Texas Gateway: Writing a Series
This resource is designed to enhance the teaching of grammar in the context of reading and writing by using mentor sentences. In this resource, mentor sentences, or sentences that highlight a grammatical point, were chosen primarily from...
The Write Place
Literacy Education Online
Literacy Education Online (or LEO) is a great place to start if you need help with your writing. The homepage is organized around kinds of problems or questions you might have concerning your writing. Find your problem, click on the...