1. Pedagogical Innovation and Creativity

This project combines the oldest science experiment and the newest ICT collaborative tools. The historical measurement At noon on the summer solstice in the Egyptian town now called Aswan, the sun hovers straight overhead. When he heard about this fact, Eratosthenes, the librarian at Alexandria , realized he had the information he needed to estimate the circumference of the planet. The modern hands-on experiment. Pupils have measured the Earth's circumference from their classroom. The pupils learn how to observe the shadows and the motion of the Sun in the sky, they build their own measuring instruments and they exchange their results with other schools through Internet. Several Web 2.0 platforms are used for this collaboration: The French (http://www.fondation-lamap.org/eratos ) and US (http://ciese.org/curriculum/noonday/ ) hands-on website. Other measures are archived on public websites (http://www.eratosthenes.eu). The last step in a series of measures are videoconferences . 

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