Look up unfamiliar definitions in this math dictionary for kids. It covers arithmetic, algebra, geometry, statistics, and trigonometry.

# Mathematics

Have ever wondered how many zeros are in a million, billion, or trillion? Do you know how many zeros are in a vigintillion or a googol? Knowing how to write ordinary large numbers is useful for science or math class (or your bank account, if you are rich). Use your knowledge […]

## How Many Zeros in a Million, Billion, and Trillion?

Law of Cosines example problems showing how to derive the law and how to use it to find the lengths of the sides or angles of a triangle.

## Law of Cosines Example Problem

The law of sines is a useful rule showing a relationship between an angle of a triangle and the length of the side opposite of the angle. These two example problems show how to use this law to find angles and sides of a triangle.

## Law of Sines Example Problem

Algebra is the study of the rules behind why common mathematics works and operates. This Algebra Word Search consists of 30 elementary algebra glossary terms.

## Algebra Word Search

Who says math can't be fun? Try this fun geometry word search and find the 30 geometry glossary terms hidden in this puzzle.

## Geometry Word Search

Writing online about scientific or mathematical topics, you’ll notice you need to write a lot of Greek letters. You’ll also have trouble finding these letters on your keyboard. This table will help you with the HTML codes for Greek letters. The table contains both capital and lower case letters, a […]

## HTML Codes for Greek Letters

Word search puzzles are a fun method to introduce glossary terms to students. This 2D and 3D shapes word search consists of 18 different shapes. These shapes can be found vertically, horizontally, and diagonally as well as forwards and backward. The word search is optimized to fit on a standard 8.5″ […]

## 2D and 3D Shapes Word Search Puzzle

Surface area formulas and volume formulas appear time and again in calculations and homework problems. Pressure is a force per area and density is mass per volume. These are just two simple types of calculations that involve these formulas. This is a short list of common geometric shapes and their […]