Traveler IQ Challenge has 14 interactive geography games. The activities can be embedded in a blog or website.

Learning Together offers four activities for learning about the geography of the United States. Learning Together also offers a game about world geography and a game about European geography.

Scavenger Hunt Through History is a game designed to be played by students in junction with Freedom: A History of US produced by PBS. Freedom: A History of US contains is an overview of US history containing videos, documents, and pictures. In addition to the resources previously mentioned, their are quizzes for students to test their knowledge.

Fling the Teacher is a website containing 68 history quiz games. All of the quizzes have at least fifteen questions and a few of the games have more than 100 questions. The average is 30-45 questions per quiz. Prior to starting each quiz game students can create their own custom game character.

Playing History is a collection of 128 games related to topics in US and World History as well as civics and geography. The games come from a variety of sources across the web. Feedback on every game and suggestions for future additions are welcomed by the hosts of the site. Visitors to Playing History can search for games by using the tag cloud, by using the search box, or just browse through the entire list.

The British Council's Learn English website offers 69 interactive activities for learning the rules of grammar. The activities are not listed by grade level so you will have to preview them to determine which activities are best suited for your students.

Shape It Up is one of many good educational games and activities on Kinetic City. Shape It Up is an activity that would be good for use in an elementary school Earth Science lesson. The activity presents students with "before" and "after" images of a piece of Earth. Students then have to select the force nature and the span of time it took to create the "after" picture. If students choose incorrectly, Shape It Up will tell the student and they can choose again.

Learning Games for Kids offers games for mathematics as well as many other content areas. Most of the games on Learning Games for Kids can be played directly on the website although some do link out to other sources.

Ghost Blasters is designed to help students learn to multiply and divide quickly in their heads. To play Ghost Blasters select a multiple of which each "bad" ghost will have a value that is a multiple of that which you chose. Students then use their mouse to blast every "bad" ghost. For example, if I select "5" at the beginning then all bad ghosts will display a multiple of 5. I then have to blast all of the bad ghosts to gain points, but if I blast a "good" ghost (a ghost that does not have a multiple of 5) I lose points.

The Problem Site is loaded with great games for students. Some of the games are traditional "hang-man" style games, some of the games are traditional games with a twist, and some of the games are completely new. Each game is designed to help students develop problem solving skills. The games are categorized as word games, math games, or strategy games.

Super Text Twist is a simple word game similar to Word Twist which asks plays to identify words from a set of jumbled letters. The Super Text Twist game be played online or downloaded for use offline.

Word Twist is an online version of the popular board game, Boggle. Word Twist comes in two versions a four by four grid and a five by five grid. The purpose of Word Twist is to identify as many words as possible using the letters in the grid.

XP Math is a good place to find math games, math videos, math worksheets, and math e-books. The games section of XP Math offers games for basic arithmetic, algebra, geometry, and probability. Create an account on XP Math and you can keep track of your scores.

MSNBC offers a gallery of online games related to the news. The gallery is called the NewsWare Arcade.

Shedd Aquarium in Chicago has a great collection of interactive learning activities. The activities are categorized according to grade level and vary in format. Some of the interactive activities are like video games (Squish the Fish for 1st graders) while others are more like virtual scavenger hunts (Conservation Investigation). The games and virtual scavenger hunts could easily take students an hour or longer to complete and the students would learn something new throughout the activity. In addition to the interactive activities, Shedd Aquarium provides a host of great Marine Science lesson plans for grades K-12.

Decimal Squares provides simple games for students to use to develop their math skills. The games do not require an account to play and they work on any web browser that has current Flash plug-ins installed. The games are best suited to middle school students, but could be used with upper elementary grades or with high school freshmen.

Sheppard Software has a fantastic collection of free web-based educational games. Sheppard Software's free games cover Science, Math, Social Studies, and Language Arts. Most of the games are appropriate for elementary and middle school students, but some games are appropriate for high school students. The geography games are particularly good.

Novel Games provides a large list of fun, simple, educational games. The list of games includes numerous math and word games. All of the games are free and are available in multiple formats. All of the games on Novel Games are easily embedded into your class blog or website.

Develop your students brain with the variety of games provided on this Fit Brain Games site.

Interactive math games. Kids will have fun while reinforcing their math knowledge.