van Shooten´s Book dbook Demostration
Challeges of Lesson Study in UFRJ Descartes´ Dream with van Schooten -
Using Historical Sources on e-textbook
Reinventing School Mathematics from Different Perspectives
by Masami Isoda and Yumiko Yamamoto Baldin
dbook (stable, 2009.09)
If you have any trouble when you use thel lastest vertion's dbook,
please download stable version and use this again.