` Streefland is to be congratulated on his thoroughness in presenting a far reaching study with many ramifications. I predict that any reader will find many of the author's premises as well as generalizations thought evoking. '
Zentrallblatt für Didaktik der Mathematik, 5
Zentrallblatt für Didaktik der Mathematik, 5
` Streefland is to be congratulated on his thoroughness in presenting a far reaching study with many ramifications. I predict that any reader will find many of the author's premises as well as generalizations thought evoking. ' Zentrallblatt für Didaktik der Mathematik, 5