Demonstrates how to add and subtract matrices, explains why the addition or subtraction sometimes can't be done, and gives an example of how matrix addition is used in homework problems.

Find a quick, concise explanation of how to add and subtract fractions. Step by step examples are included to help you understand how to find the sum or difference for fractions with both like and unlike denominators.

Kids learn how to add and subtract decimals by lining up the decimal point on this website. The site has example math problems.

Students learn about adding and subtracting fractions including steps, tips, and example problems.

Use this discussion, provided by Shodor, to reinforce your knowledge on adding and subtracting fractions with unlike denominators.

A wealth of resources to help you in planning classroom instruction on rational expressions: lesson plans offer guidelines for and examples of simplifying, adding and subtracting, multiplying and dividing rational expressions; practice...

Includes all different types of synthesis, including FM, additive, AM, subtractive, granular, RM, and wavetable.

This helpful tutorial on color perception is divided into sections including our eyes and vision, additive and subtractive color mixing, hue and saturation, and color properties.

Kids learn about the science of the light spectrum. Wavelengths and frequencies of the electromagnetic waves including visible light, primary colors, and subtractive colors.

This website provides students tips on how to add integers using absolute value and by introducing them to a pattern.

In this feature, adapted from Interactive NOVA: Earth, students explore the relationship between oxygen concentration and the well-being of various organisms by simulating a change in oxygen levels and observing what happens.

An extensive collection of teacher resources to help in teaching and reviewing the concepts of basic addition and subtraction. There are many worksheets, activities, PowerPoint presentations, smartboard activities, Word, Excel, and pdf...

This site discusses color and how it works in art, science, and the mind. Explore the many ways that color affects us.

In this short Cyberchase video, students learn about positive and negative numbers as Harry tries to score a total of 50 points in various events to qualify for the Northern Hemisphere games in New Orleans. [3:24]

This resource presents a general history and links to everything about relief sculpture. There are image examples and links to Greek, Ancient Roman, Egyptian and Chinese sites.

An extraordinary site that will help you with your math homework. Presented in a format that is both easy to understand and educational. Navigate through numerous instant-answer, self-help math solvers to help you figure out your math...

Learn about long division including how to write it down, subtract, multiply, and divide on this website. See example problems as well.

Test your math skills with different levels and mathematics functions. Add, subtract, multiply, and divide your way into funny comments and a better numbers brain.

Test your math skills and speed with this fun space battle game. You will have to do more than just shoot straight, you will have to add, subtract, divide, and multiply quickly to win this battle.

Kids learn about Solving Algebra Equations with Addition and Subtraction. Add and subtract from both sides. Example math problems are shown on page.

Kids learn about division tips and tricks including division by subtractions and how to check your answer. Example problems are given on this site.

This resource contains several links that lead to discussions on several topics of decimals, including converting and comparing with fractions, rounding, estimating, and basic operations. Each page includes examples and some sample...