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Who is the most famous or emblematic person in any city or country? Find out with this interactive map

This is a project created by Topi Tjukanov, a geographer working for the company Mapbox, who manag ...

Visualize the gravitational force that two objects exert on each other. Discover the factors that affect gravitational attraction, and determine how adjusting these factors will change the gravitation ...

When forces are unbalanced, objects accelerate. But what factors affect the amount of acceleration? This Interactive allows learners to investigate a variety of factors that affect the acceleration of ...

When a radical is not a perfect square (1, 4, 9, 16, …), estimating square roots is a valuable tool. When asked to estimate the value of a radical between two consecutive integers, find the two ...

This root calculator determines the roots of numbers, including common roots such as a square root or a cubed root.

Radical equations are equations that have square root terms. When solving radical equations, try to isolate the radical expression on one side of the equation and then square both sides (it is the inv ...

A useful calculator for solving direct and inverse rules of three. It comes with an explanation of the different types of rules of three.

A rule of three is a method to find the fourth term of a propor ...

Example of prime decomposition using 864 as the starting number. A great tool to learn how to decompose integers into prime factors. The prime factorization calculator, created calculator.net, offe ...

A ratio is a comparison of two numbers. We generally separate the two numbers in the ratio with a colon (:) or write it as a fraction. A proportion is one equality with a ratio on both sides. A perc ...

Twiddla is a free, no-setup, web-based meeting playground. Mark up websites, graphics, and photos, or start brainstorming on a blank canvas. Voice and Text chat too!

Twiddla is a very intuitive collabo ...