1. Editorial

   EditorialNotes 25 July 2014 Pages: 3 - 7

2. Evolution des Jugements de Conservation des Quantités de Gaz Chez des Elèves de CM2

   • Annick Weil-Barais
   • Marie-Geneviève Séré
   • Jean-Claude Landier

   OriginalPaper 25 July 2014 Pages: 9 - 30

3. The origin of the child's idea of learning through practice

   • Ingrid Pramling

   OriginalPaper 25 July 2014 Pages: 31 - 46

4. La Maîtrise Intuitive des Relations entre Masse, Volume et Masse Volumique Chez des Elèves du Premier Cycle

   • Etienne Mullet
   • Daniel Vidal

   OriginalPaper 25 July 2014 Pages: 47 - 65

5. Children's Understanding of Agriculture as an economic activity: the role of figurative information

   • Anna Maria Ajello
   • Anna Silvia Bombi
   • Cristina Zucchermaglio

   OriginalPaper 25 July 2014 Pages: 67 - 80

6. The role of classroom differences in achievement changes

   • Wolfgang Schneider
   • Andreas Helmke

   OriginalPaper 25 July 2014 Pages: 81 - 91

7. Relationships among conceptions of control and autonomy and other personality variables: A developmental approach

   • Louis Oppenheimer
   • Adri Stet
   • Eddie Versteeg

   OriginalPaper 25 July 2014 Pages: 93 - 102