Francisco García Núñez
2003
Teaching unit (UD) on the periodic table of chemical elements, with information on the history of the atom and the table, data on the properties of the elements and the electron configuration of the atoms. It includes interactive learning and assessment activities, a selection of interesting webpages on the periodic table, and a teacher's guide.
http://www.xtec.cat/aulanet/ud/ciencies/taula/index.htm