
06656036
a
2016f.00676
Hasiwar, Susanna
Investigating 1013 yearold students' proportional reasoning in a paintbucket task.
Fritzlar, Torsten (ed.) et al., Problem solving in mathematics education. Proceedings of the 2015 joint 17th conference of ProMath and the 2nd GDM working group on problem solving, University of HalleWittenberg, Germany, September 35, 2015. M\"unster: WTMVerlag (ISBN 9783959870122/pbk; 9783959870139 /ebook). Ars Inveniendi et Dejudicandi 6, 113121 (2016).
2016
M\"unster: WTMVerlag
EN
D50
F80
problems solving
reallife problems
proportional reasoning
Summary: In this report, the focus is on 1013year old Finnish and Indonesian students' proportional reasoning skills in a task, which requires an understanding of equality between two ratios. Ideally, every mathematic lesson, even at the primary school level, should develop students' skills in communicating their ideas by using `mathematical language'. Explaining one's thinking is not easy: for example, 71\% of Finnish students were not able to describe in the test item, how they ended up in their answer, whether it was correct or incorrect. On the other hand, 34\% of Indonesian students left their explanations out. In addition to cognitive elements, social and cultural factors play an important role in student's performance and strategies.