Lumen Learning
Lumen: Readability: Comma Overuse
This lesson focuses on the recognizing and demonstrating the standard use of commas and on the overuse of commas. It discusses patterns of comma errors and offers a practice activity.
Sophia Learning
Sophia: Avoiding Run on Sentences and Comma Splices
This lesson goes over how to correct a run-on sentence or a comma splice.
Sophia Learning
Sophia: Comma Splices and Run Ons
This lesson goes over comma splices and run-ons and discusses how to recognize them.
ACT360 Media
Writing Tips: Sentence Builder: Comma
A brief description of the rules, usage, and examples of the "comma" in English punctuation.
Expansion Learning
Expansion Learning: Where Should There Be a Comma?
Activity provides students the practice they need to master the skill of where to place a comma. Immediate feedback is given.
English Plus+
English Plus: Commas in Compound Sentences
This grammar tutorial provides rules for the comma to separate independent clauses in a compound sentence.
SUNY Empire State College
Empire State College: Rules for Use of Commas
Five basic uses of the comma and some other common uses are discussed with an example and a tip after each rule.
Grammarly
Grammarly Handbook: Comma Setting Off Restrictive Clauses
This page explains that restrictive clauses (essential to the meaning of the sentence) should NOT be set off by commas, and provides examples. It also explains that restrictive clauses often begin with the word "that."
E Reading Worksheets
E Reading Worksheets: Comma Worksheets
In this learning module, students will learn more about commas. A PowerPoint lesson and reinforcement worksheets are provided. This module is designed to support all students via hands-on approaches.
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...
Khan Academy
Khan Academy: Meet the Comma
Commas separate parts of sentences from each other, and they do so in many different ways.
Grammarly
Grammarly Blog: Comma Emphasizing Contrasting Ideas
This page focuses on the use of commas around contrasting ideas to emphasize that the subject has been modified; examples are provided. Signal words for contrasting ideas include not, unlike and never.
Grammarly
Grammarly Blog: Comma Before Too
This page explains the use of commas to emphasize the word "too" in a sentence; the use of one, two, or no commas depend of the use of "too" and its placement in the sentence.
Grammarly
Grammarly Blog: Comma Setting Off Non Restrictive Clauses
This page focuses on understanding what a non-restrictive clause is and that it must be set off by commas. It explains that non-restrictive clauses often use begin with the word "which" and offers examples.
Grammarly
Grammarly Blog: Missing Comma Before a Question Tag
Rules and examples for using commas when writing a question tag at the end of a sentence.
Grammarly
Grammarly Blog: Unnecessary Comma in a Complex Sentence
Rules and examples for using commas when writing a complex sentence.
Sophia Learning
Sophia: Comma Sense
Notes, a PowerPoint presentation, and a video introducing commas, their purpose, and common usage mistakes. Comma rules and examples concerning coordinating clauses, items in a list, introductory elements, and nouns of direct address are...
Khan Academy
Khan Academy: Punctuation: Comma and Apostrophe: Introduction to the Possessive
Five self-correcting quiz questions over possessive pronouns.
Robin L. Simmons
Grammar Bytes: Rules for Fixing Comma Splices
This site targets comma splices and fused sentences. It provides information on how to fix them using conjunctions (both coordinating and subordinating) and puntuation.
Towson University
Towson University: Comma Use With Introductory Elements Exercise 1
This is a 10-question, self-grading exercise/quiz on the use of Commas with Introductory Elements.
Towson University
Towson University: Comma Use With Introductory Elements Exercise 2
This is a 10-question, self-grading exercise/quiz on the use of Commas with Introductory Elements.
Towson University
Towson University: Comma Use With Introductory Elements Exercise 3
This is a 10-question, self-grading exercise/quiz on the use of Commas with Introductory Elements.
Towson University
Towson University: Ows: Self Teaching Unit: Major Comma Uses
This lesson focuses on comma rules including the rules, examples, links to exercises and a link to a final quiz.
Towson University
Towson University: Comma Use: Interrupters and Nonessential Elements Exercise 1
This is a 10-question, self-grading exercise/quiz on the use of Commas with Interrupters and Nonessential Elements.
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