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1. Word Problems versus Image-Rich Problems: An Analysis of Effects of Task Characteristics on Students' Performance on Contextual Mathematics Problems

Author

Hoogland, Kees, Pepin, Birgit, de Koning, Jaap, Bakker, Arthur, and Gravemeijer, Koeno

Abstract

This article reports on a "post hoc" study using a randomised controlled trial with 31,842 students in the Netherlands and an instrument consisting of 21 paired problems. The trial showed a variability in the differences of students' results in solving contextual mathematical problems with either a descriptive or a depictive representation of the problem situation. In this study the relation between this variability and two task characteristics is investigated: (1) complexity of the task representation; and (2) the content domain of the task. We found indications that differences in performance on descriptive and depictive representations of the problem situation are related to the content domain of the problems. One of the tentative conclusions is that for depicted problems in the domain of measurement and geometry the inferential step from representation of the problem situation to the mathematical problem to be solved is smaller than for word problems.

Published
2018
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29. Building Better, Earlier. The value of the 'Building Team': Jaap de Koning, chair of the EFCA Internal Market committee, outlines the benefits of bringing contractor and client together at the earliest opportunity in major construction projects

Author

de Koning, Jaap

Subjects
Contractors, Teamwork (Workplace), Farmers, Engineers, Construction and materials industries
Abstract

If you are an engineer, you will be very familiar with a polder--especially if you're a Dutch engineer. They are low-lying tracts of land, reclaimed from the sea and protected [...]

Published
2019

35. Re-integratie aan de kop van een bijstandsuitkering

Author

de Koning, Jaap, De Hek, Paul, de Vleeschouwer, elisa, Fenger, Menno, van der Torre, E.J., Public Management, and UU LEG Research USG Public Matters Public Governance and Management

Published
2017

38. Conspicuous work: peer working time, labour supply, and happiness

Author

UCL - SSH/IMMAQ/CORE - Center for operations research and econometrics, Collewet, Marion, de Grip, Andries, de Koning, Jaap, UCL - SSH/IMMAQ/CORE - Center for operations research and econometrics, Collewet, Marion, de Grip, Andries, and de Koning, Jaap

Abstract

While spillovers among peers in effort and productivity have been studied thoroughly, little is known about peer effects in working time. In this paper, we relate a unique measure of peer weekly working time from a Dutch panel to men’s working time and to their happiness, in order to find out how peer working time enters men’s utility function. We find that men’s working time increases with that of their peers, and that men’s happiness is negatively related to peer working time. Our findings are consistent with a 'conspicuous work' model, in which working time is a source of status. The paper therefore provides evidence of a new form of status seeking that can drive peer effects in working time.

Published
2017

39. Re-integratie aan de kop van een bijstandsuitkering

Author

Public Management, UU LEG Research USG Public Matters Public Governance and Management, de Koning, Jaap, De Hek, Paul, de Vleeschouwer, elisa, Fenger, Menno, van der Torre, E.J., Public Management, UU LEG Research USG Public Matters Public Governance and Management, de Koning, Jaap, De Hek, Paul, de Vleeschouwer, elisa, Fenger, Menno, and van der Torre, E.J.

Published
2017

41. Conspicuous work : peer working time, labour supply, and happiness for male workers

Author

Collewet, Marion, de Grip, Andries, de Koning, Jaap, Macro, International & Labour Economics, Research Centre for Educ and Labour Mark, RS: GSBE DUHR, and RS: GSBE - MACIMIDE

Subjects
D62, working hours, well-being, J22, education, ddc:330, I31, social norms
Abstract

This paper uncovers 'conspicuous work' as a new form of status seeking that can explain social interactions in labour supply. We analyse how peer working time relates to both labour supply and happiness for Dutch male workers. Using a unique measure of peer weekly working time, we find that men's working time increases with that of their peers and that peer working time is negatively related to men's happiness. These findings are consistent with a 'conspicuous work' model, in which individuals derive status from working time.

Published
2015

43. Representing contextual mathematical problems in descriptive or depictive form: Design of an instrument and validation of its uses

Author

Hoogland, C.P., Pepin, B.E.U., Bakker, Arthur, de Koning, Jaap, Gravemeijer, K.P.E., Hoogland, C.P., Pepin, B.E.U., Bakker, Arthur, de Koning, Jaap, and Gravemeijer, K.P.E.

Abstract

The aim of this study is to contribute to the body of knowledge on the use of contextual mathematical problems. Word problems are a predominant genre in mathematics classrooms in assessing students’ ability to solve problems from everyday life. Research on word problems, however, reveals a range of difficulties in their use in mathematics education. In our research we took an alternative approach: we designed image-rich numeracy problems as alternatives for word problems. A set of word problems was modified by systematically replacing the descriptive representation of the problem situation by a more depictive representation and an instrument was designed to measure the effect of this modification on students’ performance. The instrument can measure the effect of this alternative approach in a randomized controlled trial. In order to use the instrument at scale, we made this instrument also usable as a diagnostic test for an upcoming nationwide examination on numeracy. In this article we explain and discuss the design of the instrument and the validation of its intended uses.

Published
2016

45. ICT and older workers: no unwrinkled relationship

Author

Koning, Jaap de and Gelderblom, Arie

Subjects
Aged -- Economic aspects, Employee benefits -- Laws, regulations and rules, Employee performance -- Evaluation, Employee benefits, Government regulation, Business, Business, international, Human resources and labor relations
Published
2006

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