Pop-ups, banner ads, grammar mistakes ... these are all signs of an untrustworthy website. With the handy Legit-O-Meter poster, scholars can now double-check their sources to ensure accurate, reliable information. The color-coded poster...

Want to learn some quick facts about Victorian England? Check out a series of fact cards that include information about class structure, education rights, public health, and Queen Victoria herself.

Known as Guzzinta Tests, here are some quick tricks you can learn to see if a number is divisible, can be divided by, another number.

Learn the proper rules for capitalization with this slideshow. Links for further practice are included at the end.

Learn about the octet rule and ionic bonds in this slide show presentation. Then find out how to start a molecular formula.

This slide presentation contains a description of the octet rule, as well as many related topics.

This site from UCLA Mathematics Department explains the Midpoint Rule and how it relates to a double integral and finding surface area.

A Prezi created to define the most popular types of government.

This highly visual infographic explains how propositions get on the ballot in the state of California.

This slideshow lesson lists the uses of apostrophes: to show possession, create contractions, and identify missing letters. It explains the rules for each of these uses and provides examples.

This slideshow focuses on the use of commas in a series. It discusses the rule for commas in a series; requirements of a series; words, phrases, and clauses in a series; and comma placement.

This slideshow focuses on how to punctuate dialogue; it explains the rules for quotation mark and comma use in direct speech, when switching speakers, and when a single speaker speaks in multiple, continuous paragraphs. It provides...

This lesson will demonstrate how to write out verbal rules to reflect a known pattern or sequence.

Use these 100s Boards to have students check for divisibility by 2-12 and for square and prime numbers. Just find the links below the 100s board that has the directions printed right on top of the worksheet.

This video lesson focuses on the rules for using colons and semicolons, which are often confused. It offers rules for the uses of each with specific examples. Real Player is required.

This slideshow discusses the difference between colons and semicolons and explains the rules and uses for each.

This slideshow lesson focuses on compound words; it defines the term, provides a list of examples of both hyphenated and non-hyphenated compound words, explains the rules for when to hyphenate them, and provides examples. It also...

This slideshow lesson focuses on hyphening words in line wrapping; it defines hyphens and line wrapping and gives the purpose of line wrapping. It explains where to place the hyphens, hyphenating rules for line wrapping, computer line...

This slideshow tutorial focuses on punctuating short quotations; it defines short quotations, explains how to smoothly integrate quotations into your writing, and gives the rules for punctuating them according to method of integration.

This lesson focuses on abbreviations including an introduction to abbreviations with examples, why they are used, links to abbreviation activities, and a summary of the abbreviation information in text format. It also provides a...

This lesson focuses on adjectives and the rules for changing them to comparative and superlative forms. It offers textual information about adjectives and practice adding them to sentences. It also provides two YouTube videos: the first...

Visualize 63 different ruled surfaces constructed on some famous planar curves. It has the description of each curve, the planar graph of the curve and an animation of each of the surface.

Click on any of the ten interactive charts to hear different letter and letter-blend sounds and see corresponding words and pictures. In addition, over sixty printable phonics lessons provide word lists and practice activities for the...

This slideshow lesson discusses the question mark: its purpose, rules and examples for its use, and common errors in usage.