Se llamaba Alexia

It's Ms. Frizzle's birthday and the class tries to bake a cake but winds up inside it, learning about mixtures and reactions that occur when ingredients are put together."

3 million years ago, men built the first stone tools for hunting. 2 million years ago, men walked in a completely upright position and had already discovered fire. 1 million years ago, men organized themselves in groups... Okay, okay, but what about the women? Where were the women in the meantime?

PROGRAMS OF SOCIO CULTURAL ANIMATION - Three instruments for its design and evaluation - The book presents three instruments for the design, realization and evaluation of programs in socio-cultural animation. The socio-cultural animation programs are erected on two main pillars: - A conception of the person and an active and transforming form of living. - The generation of groups and processes of operative groups to participate freely and responsibly in social action.

El joven Von Neumann y la ciencia europea de principios del siglo XX. Von Neumann y las matemáticas en Gotinga. Su pensamiento científico. En los Estados Unidos. La actividad científica en los años cuarenta y cincuenta. Von Neumann y la ciencia del siglo XX.