[Free Registration/Login may be required to access all resource tools.] Understand and define probability in terms of ratios.

Understand the right triangle definition of sec, csc, and cot ratios. Students receive immediate feedback and have the opportunity to try questions repeatedly, watch a video or receive hints.

After reading a simple definition of "ratios", you can explore many examples of ratio use in the real world.

This site gives a definition of a ratio along with two word problems. Also shows the student how to compare ratios using fractions.

This tutorial provides definitions and examples of ratios and proportions and features comparing ratios and converting rates.

Learn about ratio tests with this handy reference guide. Provides a detailed definition and examples that enhance further explanation. Includes links to related topics.

Understand the right triangle definition of sec, csc, and cot ratios.

The rules and definitions of fractions are clearly explained at this website. Numerators and denominators are illustrated and explained. This is an excellent place to get the basic foundation for fractions.

In this mini lesson, students will learn about rate, what is rate, the unit rate calculator, the ratio definition, and unit rate examples. Practice questions test understanding.

[Free Registration/Login may be required to access all resource tools.] Recognize and calculate simple theoretical probability.

[Free Registration/Login may be required to access all resource tools.] Explain the inverse of trigonometric functions.

In this investigation, learners are asked to explain a Wall Street Journal (WSJ) announcement about unemployment, and look for a contradiction in the message. Then they are introduced to the definitions of employment, unemployment, and...

This site offers a clear definition of what a Power Series is and clearly discusses the radius of Convergence using the ratio test through clear examples.

A comprehensive guide for learning all about proportions with definitions, proportion formulas, types of proportions, properties of proportions, the difference between ratio and proportion, solved examples, and practice questions.

This site has a definition and properties of Leptons, the "Basic building blocks of matter." There are links to table of properties and more information.

Definitions of the basic concepts in statistics. Great for review and discussion or for introduction into topics.

Seventh graders learn the definition of rational number, and they write rational numbers as ratios of integers and as repeating or terminating decimals.

A complete reference guide to similar triangles and polygons. It provides definitions and interactive activities that enhance further explanation.

The resource examines sequences and infinite series. Topics investigated are power series, convergence, comparison test, integral test, ratio test, and Taylor series. Class notes, definitions, and examples with detailed solutions are...

This resource contains a lengthy list of definitions of a variety of material properties related to solid strength and elasticity. The definitions are accompanied by equations and metric unit information.

A good site explaining absolute convergence. The site has the definition, theorem and examples.

Lesson looks at the definition of an ecosystem, biogeochemical cycles, and factors responsible for the differences between ecosystems.

Acquire a deeper understanding of the concept of proportionality. Concise definitions, detailed examples, and an interactive worksheet to apply what you have learned.

This site contains the definition for the term "Golden Rectangle," complete with detailed pictures, charts, and explanations.