1. Children's algorithms as schemes

   • Leslie P. Steffe

   OriginalPaper Pages: 109 - 125

2. The part-whole schema and artithmetical problems

   • Miriam A. D. Wolters

   OriginalPaper Pages: 127 - 138

3. A subtraction experiment with six and seven year old children

   • Julia Matthews

   OriginalPaper Pages: 139 - 154

4. Processus de recherche d'un probleme de geometrie chez l'eleve de l'enseignement secondaire

   • Gerard Audibert

   OriginalPaper Pages: 155 - 181

5. Mathematics achievement, language and cognitive development: Classroom practices in Papua New Guinea

   • Randall J. Souviney

   OriginalPaper Pages: 183 - 212

6. Book Review

   • G. Glaeser
   • Joop Van Dormolen

   BookReview Pages: 213 - 215