Described as "principal structure associated with the history of weather observation" in the United States, this observatory is home to the oldest continuous weather record in North America, and is where numerous meteorological...

This church, designed by architect Peter Harrison and completed in 1761, served Cambridge Anglicans. Despite numerous alterations, the church has retained much its original 18th century character.

Includes pleasure grounds with views of the Hudson River and Catskill Mountains, formal gardens, natural woodlands, and numerous support structures as well as a 54 room mansion; completed in 1898; perfect example of the Beaux-Arts...

This open-source encyclopedia article from Wikipedia offers an in-depth profile of George W. Bush. Content includes information on his personal life and education, his political career and business ventures before becoming President of...

This open-source encyclopedia article from Wikipedia offers an in-depth profile of George W. Bush. Content includes information on his personal life and education, his political career and business ventures before becoming President of...

A brief article on author Francis Hodgson Burnett, best known for children's books, such as "The Secret Garden" and "A Little Princess." Includes a glimpse of her early childhood in England and move to the U.S., as well as an overview of...

Extensive information about Mayan history and civilization with numerous links on additional topics, such as Mayan childhood and music.

Once the dividend is correctly identified, a rectangle representing the divisor will appear. The divisor is the horizontal distance of the blue arrow. The program will not continue unless the dividend or the divisor are correctly...

This simple website has a printable page for each of the numbers one through ten. On this sheet you can practice writing the digit, the word and the word in a sentence using manuscript printing.

Test your aptitude at adding fractions on a number line. Enhance your skills using this interactive math game. Immediate feedback and examples provided.

This site explains how to identify the thousandths place value. Includes games to practice this skill.

The student learns how to create number patterns involving addition and subtraction.

A simple lesson giving instructions on how to write numbers from zero to nine. Writing examples provided as well as links to related counting and number identification games. Both games are interactive and easy to grasp. Activities best...

This very basic website gives simple, easy steps on how to subtract fractions with the same denominator and what to do when they have different denominators.

Activity provides questions that test understanding of how to translate expressions with parentheses. Immediate feedback is given and hints or a video are available if needed.

" Ethnolinguistic Groups - Almost all inhabitants of mainland China are of Mongoloid stock, and ethnic distinctions in the country are largely linguistic rather than racial. The Han comprise nearly 95 percent of the population; the...

" North China includes the densely populated and intensively cultivated North China Plain, the loess-covered uplands of Shansi, northern Shensi, and eastern Kansu, and the sparsely populated, semiarid steppes of Inner Mongolia....

A map from 1898 of South America showing the general physical features including mountain systems, prominent peaks and volcanoes, river and lake systems, plateaus, and coastal features. The map includes an insert of the Isthmus of...

At this one page site you can work through step by step a sample problem that illustrates the problem solving strategy for "Write a number sentence." The answer is right there to help you check your thinking.

A tutorial and downloadable worksheets that practice generating patterns and identifying relationships. It offers a pretest, an explanation with examples, practice, and a test.