Initial Fraction Learning by Fourth- and Fifth-Grade Students: A Comparison of the Effects of Using Commercial Curricula with the Effects of Using the Rational Number Project Curriculum.

By Kathleen A. Cramer, T. Post, R. delMas. 2002

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Inhibiting natural knowledge in fourth graders: towards a comprehensive test instrument (2015, background): “Still, research in cognitive psychology and mathematics education has repeatedly shown that children and even adults struggle with different aspects of rational numbers (Cramer et al. 2002; Li et al. 2009; Mazzocco and Devlin 2008; Vamvakoussi et al. 2012).”
Mathematical Content Knowledge for Teaching Elementary Mathematics: A Focus on Fractions (2014, unknown): “ 2013 49 from U.S.; 47 from China U.S.–third year of program; China–third year of program China and USA Test adapted from Cramer, Post, and delMas (2002) given during first week of fall semester Lo & Grant 2012 16 3 had completed their …”
Preservice elementary school teachers’ knowledge of fractions: a mirror of students’ knowledge? (2014, background): “In order to cover the multifaceted structure of fractions (Baroody and Hume 1991, Cramer et al. 2002, English and Halford 1995, Grégoire and Meert 2005, Kilpatrick et al. 2001), we ensured that the test addressed all five sub-constructs as distinguished in literature (Charalambous and…”
Drawing on a Theoretical Model to Study Students’ Understandings of Fractions (2007, background): “The model has been frequently cited by several researchers and informed the development of mathematics curricula (Cramer et al., 2002).”