TY  - BOOK
AU  - Galen,Frans van
AU  - Feijs,Els
AU  - Figueiredo,Nisa
AU  - Gravemeijer,Koeno
AU  - von Herpen,Els
AU  - Keijzer,Ronald
TI  - Fractions, Percentages, Decimals and Proportions: a A Learning-Teaching Trajectory for Grade 4, 5 and 6 
T2  - Dutch Design in Mathematics Education
SN  - 9789460911422
AV  - QA137 
U1  - 372.7 23
PY  - 2008///
CY  - Leiden; , Boston
PB  - Brill | Sense
KW  - Mathematics
KW  - Study and teaching (Elementary)
KW  - Decimal fractions
KW  - Fractions
KW  - Percentage
N1  - Preliminary Material -- Foreword -- Introduction and overview -- Relationships -- Core insights for proportion -- Core insights into fractions -- Core insights into percentages -- Core insights into decimals -- Differentiation -- Final and intermediate attainment targets
N2  - This book describes the field of fractions, percentages, decimals and proportions. It shows the relations between these topics, and how they can be taught in a way that emphasizes these relations. The book also describes the need for change in the way we teach mathematics. The authors argue for a shift in emphasis from “acquired skill” to “understanding”. First and foremost, students should grasp the underlying concepts. Placing less high demands on the skill level of students in the use of formal procedures can set free time that can be invested in in-depth understanding
UR  - http://dx.doi.org/10.1163/9789460911422
ER  -