Karen C. Fuson, Steven T. Smith, Ana Maria Lo Cicero, Supporting Latino First Graders' Ten-Structured Thinking in Urban Classrooms, Journal for Research in Mathematics Education, Vol. 28, No. 6, Equity, Mathematics Reform, and Research: Crossing Boundaries in Search of Understanding (Dec., 1997), pp. 738-766
No takes yet. Share an insight, caveat, or question.
Fuson et al. (1997) studied this question.