1. Pintó R. Centre de Recerca per a l’Educació Científica i Matemàtica (CRECIM) University Autònoma de Barcelona (Spain), roser.pinto@uab.cat

  2. George Papageorgiou,

    Department of Primary Education, Democritus University of Thrace, e-mail: gpapageo@eled.duth.gr

  3. C. P. Constantinou
    Learning in Science Group, University of Cyprus

    c.p.constantinou@ucy.ac.cy

  4. Hans Niedderer
    Malardalens University, Sweden; University of Bremen, Germany,
    http://www.idn.uni-bremen.de/mitarbeiter_eng.php?id=27

  5. Georgios Tsaparlis, University of Ioannina, Department of Chemistry, gtseper@cc.uoi.gr