Willow Tree
Order of Operations
It's the classic please excuse my dear aunt sally strategy to remembering the order of operations. Young mathematicians practice to develop an understanding of the order of operations. Examples and practice problems include...
Capital Community College Foundation
Guide to Grammar and Writing: Abbreviations
A very competent look at how to use abbreviations in their proper context. This site also examines the proper use of abbreviations with titles, numbers and phrases.
Virginia Tech
Virginia Tech: Parentheses and Rules for Use
This resource contains five rules for correctly using parentheses and a section regarding capitalization within parentheses. Examples are included for each of the rules.
University of Ottawa (Canada)
University of Ottawa: End Punctuation
Resourceful site which includes information about periods, question marks, and exclamation marks. Also provides examples and addresses abbreviation rules for periods.
Other
Sta: Punctuation and Capitalization Rules
Use this handy guide for a quick reference to punctuation and capitalization rules. Includes rules for end marks, apostrophes, capitalization, commas, quotation marks, and many more!
Rutgers University
Rutgers University: Guide to Grammar and Style: Periods
An excellent outline of the usage and rules concerning the "period" in English punctuation. Includes guidelines about acronyms, abbreviations, sentence ending, and more.
SUNY Empire State College
Empire State College: Apostrophes
This resource looks at the three main uses of apostrophes: to take the place of deleted letters; to show possession; and to show plurals of letters, numbers, symbols, abbreviations and words used as words.
Other
Sandhills Community College: The Period
A good guide to understanding the several uses of the period in English punctuation. Includes information concerning periods in a sentence as well as abbreviations. Includes several examples.
Capital Community College Foundation
Guide to Grammar and Writing: The Period
An excellent resource detailing the uses and rules of the grammatical element "the period." Also includes information about the period in sentences, quotation marks, parentheses, and abbreviations.
Harvard University
Harvard Writing Center: Tips on Grammar, Punctuation and Style
Rather than lists of rules, this site provides practical advice on the use of commas, semicolons, dashes, hyphens, abbreviations, acronyms, split infinitives, "this," "that," italics, and underlining. CCSS.ELA-Literacy.CCRA.L.2
English Club
English Club: When Do We Use Capital Letters
This EnglishClub resource provides eleven instances in which using capital letters is necessary. Several examples are provided with each of the eleven rules.
ACT360 Media
Writing Tips: Punctuation: Period
A brief description of the rules, usage, and examples of the "period" in English punctuation. Includes basic information concerning period use in abbreviations as well.
English Plus+
English Plus: Grammar Slammar!
An easy-to-use grammar resource containing rules for style, usage, capitalization, abbreviations, punctuation, and letter writing. This site also includes a glossary of common grammatical mistakes.
Other
Using English: Glossary of English Grammar Terms
A comprehensive A-Z index of grammar terms with explanations and examples. Each entry provides links to activities and other resources available on the site for more practice on that aspect of grammar. Suggested activities are often...
Other
Illinois State U.: Punctuation Made Simple Apostrophes
What is an apostrophe and how is it used properly in punctuation? "Punctuation Made Simple," gives some concrete examples for apostrophe use.
Grammarly
Grammarly Handbook:capitalization:call Letters of Radio and Television Stations
This page explains that call letters for radio and television stations are always in all capital letters and provides examples.