Smith, M. S., & Stein, M. K. (1998). Selecting and creating mathematical tasks: From research to practice. Mathematics teaching in the middle school, 3(5), 344-50.
עברית (תרגום: ברכה סיגליס):
http://ymath.haifa.ac.il/images/stories/part3/teachers/articles/translations/article27.pdf
ערבית:
http://ymath.haifa.ac.il/images/stories/part3/teachers/articles/translations/article27arb.pdf
Stein, M. K., & Smith, M. S. (1998). Mathematical tasks as a framework for reflection: From research to practice. Mathematics teaching in the middle school, 3(4), 268-275.
עברית (תרגום: ברכה סיגליס):
http://ymath.haifa.ac.il/images/stories/part3/teachers/articles/translations/article28.pdf
ערבית:
http://ymath.haifa.ac.il/images/stories/part3/teachers/articles/translations/article28arb.pdf