WG 2 Papers
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Chair: Sebastian Rezat ( Germany)
Sebastian.Rezat@math.uni-giessen.de
Papers
WG2 Report: Download
Nadine Bednarz & Jérôme Proulx
The (Relativity Of The) Whole As A Fundamental Dimension In The Conceptualization Of Fractions
Renata Carvalho & João Pedro da Ponte
Students’ Mental Computation Strategies With Rational Numbers Represented As Fractions
Uta Häsel-Weide & Marcus Nührenbörger
Replacing Counting Strategies: Children’s Constructs Working On Number Sequences
Catherine Houdement & Christine Chambris
Why And How To Introduce Numbers Units In 1st –And 2nd –Grades
Andreas Lorange & Reinert Rinvold
Levels Of Objectification In Students’ Strategies
Bernardo Gómez, Javier Monje, Patricia Pérez-Tyteca & Mirela Rigo
Performance On Ratio In Realistic Discount Task
Cristina Morais & Lurdes Serrazina
Mental Computation Strategies In Subtraction Problem Solving
Susanne Prediger
Focusing Structural Relations In The Bar Board – A Design Research Study For Fostering All Students’ Conceptual Understanding Of Fractions
Elisabeth Rathgeb-Schnierer & Michael Green
Flexibility In Mental Calculation In Elementary Students From Different Math Classes
Benoit Rittaud & Laurent Vivier
Different Praxeologies For Rational Numbers In Decimal System – The 0,9 ̅ Case
Maike Schindler & Stephan Hußmann
About Students’ Individual Concepts Of Negative Integer – In Terms Of The Order Relation
Isabel Velez & João Pedro da Ponte
Representations And Reasoning Strategies Of Grade 3 Students In Problem Solving
Gerald Wittmann
The Consistency Of Students’ Error Patterns In Solving Computational Problems With Fractions
Posters
Regina Reinup
Converting Via Fractions, Decimals, And Percents
Rinaldi Anne-Marie
To Measure With A Broken Ruler To Understand The Common Technique Of The Substraction
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