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Reflections & Commentary
Erlwanger (1973) and Skemp (1977), Benny and relational knowledge.
Shaughnessy and Burger (1985, 1986), van Hiele levels and deduction.
Senk (1989) and Gutierrez et al (1991), Chicago van Hiele project and the Spanish
Gutierrez & Jaime (1998) and Clements (1991), Spanish van Hiele theory and syncretics.
Gutierrez & Jaime (1999), van Hiele acquisition theory.
Martin & Strutchens (2000), NAEP results for geometry and measurement.
Blume, Galindo & Walcott (2000), NAEP results for geometry and measurement in diagolue
with the Standards.
Battista & Clements (1996), students' understanding of 3D arrays.
Clements (2003), review of teaching and learning geometry from the research companion
to the Standards.
Herbst (2006) and Pandiscio & Orton (1998), geometry with problems and a comparison
of van Hiele and Piaget.
Clements & Sarama (2008), evaluation of the Building Blocks preschool mathematics
Koedinger (1998), conjecuring and argumentation.
Norton & D'Ambrosio (2008), instruction involving ZPD and ZPC.
Cobb et al. (2001) and Mercer (2008), qualitative methodological pieces.