A comprehensive tutorial from AAA Math that contains explanations, interactive practices and challenging games.

This AAA Math tutorial covers calculating percents, relationships of percents to fractions and decimals, and uses of percents.

Students practice counting backward with numbers and words in this interactive lesson from AAA Math. This lesson offers the opportunity to learn, practice, play a game and explore the concept of counting backward with number names and...

Early elementary counting skills are detailed here at AAA Math, each section having an explanation, interactive practice, and counting games.

This is a collection of reports of studies of driving safety. It includes information about the crash risk of cell phone use and the use of in-vehicle technology among older adults.

Calculating the circumference or perimeter of a circle has gotten easier with this formula and practice for finding the circumference.

This lesson is about counting by fives from AAAmath.com. There are separate sections for learning, practice, playing a game, and exploring more about skip counting.

This lesson is about counting by twos from AAAmath.com. There are separate sections for learning, practice, playing a game, and exploring more about skip counting.

This lesson is about counting by threes from AAAmath.com. There are separate sections for learning, practice, playing a game, and exploring more about skip counting.

This lesson is about counting by fours from AAAmath.com. There are separate sections for learning, practice, playing a game, and exploring more about skip counting.

This tutorial makes the memorization of metric prefixes fun. Students can race the clock to see how well they have the prefixes memorized.

There is a great interactive problem set for students to practice the concept of the inverse property. This would be a great review before a unit on solving basic equations.

Science Update offers daily podcasts to supplement science exploration. Be educated and entertained while learning about astronomy, geology, wildlife, plants, and other science topics. Grab the latest podcasts, or browse the archives by...

Article reports on findings from a recent study that elephants display empathy and console one another when upset. This behavior was previously thought to be unique to apes and humans. Includes a brief video [0 mins, 50 sec].

Article reports on the European Space Agency's upcoming program to search for exoplanet in space.

Text of remarks made by FDR on the effects of the Agricultural Adjustment Act and of other government programs to aid farmers.

This lesson from AAA Math explains how to round decimals to the nearest tenth. Gives practice problems and games to test your skills.

Practice finding the sales tax with this interactive AAA Math lesson. You may submit your answer to see if you are correct.

Front-end estimation is explained and demonstrated with an online game at this AAA Math lesson.

Find the relationship between multiplication and addition at this lesson from AAA Math. The game gives an addition problem that you change into a multiplication problem. Your correct and incorrect answers are shown, as well as a percent...

A comprehensive tutorial from AAA Math that includes multiplication facts, multiplying numbers, multiplying fractions, multiplying decimals and properties of multiplication. Games and practice exercises are part of this lesson.

AAA Math provides a descriptive summary of the division of integers and interactive questions with positive and negative integers.

Article reports on groundbreaking research which looked at brain scans of dogs and discovered that, like humans, their brains have a voice processing center, which helps explain why dogs are so attuned to human emotions.

Students can practice rounding numbers to the nearest thousand through a series of self-check exercises and timed learning games.