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Colloquium Mathematics, Jos Tolboom

11 september 2012


Join us for coffee and tea at 15.45 p.m.



Date: Tuesday September 11th, 2012

Speaker: Jos Tolboom

Room: 5161.0267 (Bernoulliborg)

Time: 16.15





Title:The potential of a classroom network to support teacher
feedback: a study in statistics education



In mathematics education teachers experience a constant lack of time
to properly instruct their students. In the Netherlands the contact
time for mathematics in secondary education during the last fifteen
years again declined. Mathematics is also perceived as difficult by
students. This research focuses on the question: how can we better
utilize contact time in mathematics education?
Meta-analyses of learning outcomes, such as those described by Hattie
(2009), show that feedback is one of the most powerful single tools
for improving learning achievements. In this study we explore the
possibility of graphing calculators (GR), connected to the teacher
computer through the use of a wireless network, to improve the
feedback in mathematics education. First, students received immediate
feedback on their worked out mathematics assignments GR and second,
the teacher, usually in the next lesson, gave feedback on the work of
the students, supported by an analysis of that work through the
system. This study focused primarily on the development of 'data
literacy' among students, while the 'algorithmic skills' were not
In four stages, a prototype of the intervention designed, tested,
evaluated and adjusted in nine groups of students. The mathematics
teachers and their students are generally enthusiastic about the
results. They for instance recommend to spend half of each lesson
working this way. Though, the teachers explicitly state that they have
experienced a tough workload while mastering this way of teaching. The
study makes the conditions to be met before the method can be
successful explicit.


Colloquium coordinators are Prof.dr. A.C.D. van Enter (e-mail : and

Dr. A.V. Kiselev (e-mail: )

Laatst gewijzigd:04 juli 2014 21:33

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