Ronald Keijzer
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Fractions, Percentages, Decimals and Proportions: A Learning-Teaching Trajectory for Grade 4, 5 and 6 (Dutch Design in Mathematics Education, 3)
Galen, Frans Van; Feijs, Els; Figueiredo, Nisa; Gravemeijer, Koeno; Herpen, Els Van; Keijzer, Ronald
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Measurement and Geometry in Upper Primary School (Dutch Design in Mathematics Education, 7)
Gravemeijer, Koeno; Figueiredo, Nisa; Feijs, Els; Galen, Frans Van; Keijzer, Ronald; Munk, Fokke
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Rekenen-wiskunde in de praktijk - Onderbouw
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