Provides much general information and detailed facts about the sparsely populated Central American country of Belize.
After reading a brief overview on Guyana, you can learn many enlightening facts about the country through "Facts at a Glance" or more detailed information in the commentary section.
Tuning into the radio is now an integrated part of our everyday lives. We tune in while we drive, while we work, while we cook in our kitchens. Just 100 years ago, it was a novelty to turn on a radio. The radio emerged at the turn of the twentieth century, the result of decades of scientific experimentation with the theory that information could be transmitted over long distances. Radio as a medium reached its peakåÑthe so-called Radio Golden AgeåÑduring the Great Depression and World War II. This was a time when the world was rapidly changing, and for the first time Americans experienced those history-making events as they happened. The emergence and popularity of radio shifted not just the way Americans across the country experienced news and entertainment, but also the way theyåÊcommunicated. This exhibition explores the development, rise, and adaptation of the radio, and its impact on American culture.
Students learn basic marketing concepts and use professional marketing techniques to compose an advertisement for a hybrid vehicle. In the process, they learn the principles of comparative analysis.
Come and review your prepositions with this interactive quiz. Students and teachers will benefit from this educational resource.
A portion of a larger book, this site is critical of journalism as it is presently practiced. This portion offers characteristics of critical news consumers.
This collection uses primary sources to explore the impact of television on news media. Digital Public Library of America Primary Source Sets are designed to help students develop their critical thinking skills and draw diverse material from libraries, archives, and museums across the United States. Each set includes an overview, ten to fifteen primary sources, links to related resources, and a teaching guide. These sets were created and reviewed by the teachers on the DPLA's Education Advisory Committee.
The tutorial explores applications of trigonometric graphs. Topics include simple harmonic motion and angular velocity. Definitions, an animation, examples, and practice exercises are included.
Add, subtract, multiply and divide complex numbers using these easy-to-follow examples.
After reviewing the process of solving quadratic and cubic equations, a definition of an imaginary number is given. Also included is a demonstration of simplifying powers of the imaginary number and writing complex numbers. Examples are provided as well as extra practice with the concepts.
The definitions of domain and range are given in this lesson. Then use the examples to practice determining domain and range of several functions. Real-world applications are provided to enhance the concept.
The concept of equivalent fractions is applied to algebraic expressions. Examples of how to simplify expressions are included, along with when to stop simplifying. Includes practice problems.
Two methods are demonstrated for finding the inverse of a matrix. The examples are detailed and easy to follow. Several interactive examples are also provided.
A description of the complex plane is given with examples of how to plot complex numbers. Also included is an explanation of how to add complex numbers graphically.
Using the graphing method, several systems of nonlinear equations are solved. Follow each example step by step to see how solutions are derived.
Interactive graphs of base 10 exponential and logarithmic functions are demonstrated and applied to real-world problems.
A brief overview of three methods used to graph lines is presented through examples. Slope-intercept, point-slope, and intercept form are demonstrated step-by-step along with a review of the formula for finding the slope of a line.
An interactive graph provides a demonstration to show how the measure of an angle is related to the sine and cosine waves. Topics covered include amplitude and period. Examples allow students to practice the concepts.
The tutorial investigates period and frequency by examining the shapes of the sine and cosine functions. The resource consists of definitions, animations, interactive graphs, and examples. Practice problems with solutions are included.
Everything you need to know to begin working with functions is presented in this lesson. Learn the definition, notation, and use of functions then practice evaluating with the examples provided.