Use this tutorial to learn what imaginary and complex numbers are, how to write them, and how to perform operations with them. Offers step-by-step examples, video explanations of the examples, and practice questions with answers.
A detailed tutorial on functions covering the following topics: finding the domain and range of a function, using the vertical line test, determining whether a function is even, odd, or neither, and applying the greatest integer function to a given number. Includes many sample functions, problems with step-by-step solutions, and practice questions with answers and discussions.
The sample problems and solutions in this tutorial will show you what an inverse function is: how to find one, how to graph a function and its inverse, and how to determine whether a function has an inverse.
This clear tutorial provides the definition of a logarithmic function as well as instruction on how to perform important tasks with them. Find step-by-step solutions to example problems and practice exercises for you to complete and check.
An introductory tutorial on sequences, complete with important definitions, example problems and step-by-step solutions, and several practice exercises for you to complete and check. Provides good explanations and examples of arithmetic, geometric, and Fibonacci sequences.
This tutorial will show you how to solve a system of linear equations in three variables by using the elimination method. Complete with definitions, example problems with step-by-step solutions, and practice exercises for you to complete and check.
This tutorial will guide you through several tasks associated with systems of linear equations in two variables. Complete with definitions, problems with step-by-step solutions, and example exercises for you to complete and check.
A brief discussion of the colonial period in the United States. Includes information on New England, the middle colonies, and the southern colonies. Also, find out about the early government, and the French and Indian War.
Comprehensive information about the colonial period of American History. Includes information about New England, colonies, government, people, The French and Indian War, and the Salem Witch Trials.
Contains plans for four 50-minute lessons that ask students to use their five senses for poetry prewriting. In addition to student objectives and standards, this instructional plan contains links to PDF handouts and sites used in the lessons as well as assessment and reflection activities.
Features a vast collection of a variety of different maps all representing the state of Colorado. View state maps, city maps, historical maps, National Park maps, and more.
This resource explores the various types and uses of descriptions in writing. Includes in-depth information about the definition, uses, and types of descriptive detail.
A page on the elements of the Exchange that made the most significant impact. Clicking on the item brings up a page of explanation.
Here is a single file presenting the full-text of William Shakespeare's comedy, "The Comedy of Errors."
Contains plans for four lessons that teach students about narrative plot structures by using "The Three Little Pigs" fairy tale or a similar story. In addition to objectives and standards, this instructional plan contains links to sites used in the lessons as well as assessment and reflection activities.
Discusses the formation of the committees of correspondence movement starting with the first one in Boston in 1772. Includes supporting primary source documents and great resources for teachers including lesson plans.
Paul Nurse describes his research that showed that humans share some genes with organisms as different from us as simple brewer's yeast. Footage from Secret of Life: "Immortal Thread."
This lesson plan gives students a chance to explore the art and literature of Indians, Africans, Mayans, and Native Americans. Provides plenty of links to photo examples, and lesson extension ideas.
Article with charts and links to related material discusses how free trade is a result of comparative advantage, and how consumers can consume beyond their original production possibilities frontier if they specialize and trade.