Mind mapping software is used to create diagrams of relationships between ideas or other pieces of information. A concept map is a special form of a web diagram for exploring knowledge and gathering and sharing information

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Watch hundreds of animated explanations, interactive tutorials and instructional videos and Explania.com !  They can also be embedded into your own website.

http://www.explania.com/en

Here is an example …. (click on the image to start the animation)

The Human Heart – Explania

Appropriate Technology is used to solve technological problems throughout the world, by providing sustainable solutions that are beneficial to the local community……

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Scienceblog.org  is my own portal for science students and teachers.

It brings articles and other resources for students and teachers following 21st Century Science.