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1 Basic Arithmetic and Algebra »
Topic: 1.1 Review of arithmetical operati…
Review of arithmetical operations on rational numbers and quadratic surds.
Animated visual proof of the difference of two squares
A clear, animated visual proof of the fomula for the difference of two squares. The step-by-step explanations can be turned off if you are presenting this to a class.
Decention
A game where you have to sort numbers into equivalent groups. Each group contains a fraction, decimal and percentage. Starts off easier and gets harder with each level completed
math teacher - math touch practice
“Math Touch helps you visualize how to perform the Order of Operations given any mathematical operation sequence.”
[iTunes link for iPhone, iPod touch and iPad – free]
Percentage Calculator
Percentage calculator is a web app that is used as an aid in learning / teaching percentages and fractions.
The tool can be used on the original website and customized and embedded on external websites, for example to provide an interactie element to otherwise static lessons on percentages and let children test problems as they read about them.
Scientific Notation - Ignite Learning
Introduce scientific notation for describing numbers and concepts from the infinitesimal to the seemingly infinite.
Square Root Calculator & Solver
The square root calculator will reduce any square root to its simplest radical form as well as provide a brute force rounded approximation of any real or imaginary square root.
The Irrationality of Pi - The Code - Episode 1 - BBC Two
In episode one of The Code, Marcus du Sautoy explains the importance of irrational number pi and how any number you can possibly imagine will appear in the sequence somewhere.
TwentyFour Lite
“An addictive new take on a classic math card game! The goal of the game is deceptively simple: make the number 24 using the four given numbers and basic arithmetic — addition, subtraction, multiplication and division.”
[iTunes link – iPhone, iPod touch, iPad – free]