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Introduction to the story of Anne Frank and the Second World War

Anne’s life is turned upside down when the war begins, and she has to go into hiding in the Secret Annex. This lesson introduces ...

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 ...

This resource, created by Javier Ramos Sancha, will help the students to learn about the cells, the organization of the living things and how the different systems of the body work through a project b ...

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 ...

What does truly healthy and sustainable food look like on a plate in the Nordic Region, Canada, Indonesia or Brazil? This interactive game will help you find out. Using gamification of evidence and di ...

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

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 ...

Identify proportions by cross multiplying or simplifying ratios.

It is an educational content of CK-12 Foundation (to access some of the CK-12 contents you must be logged in).

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 ...