id: 06451893
dt: a
an: 2015d.00513
au: Kondratieva, Margo
ti: Multiple proofs and in-service teachers’ training.
so: Ubuz, Behiye (ed.) et al., CERME 8. Proceedings of the eigth congress of
the European Society of Research in Mathematics Education, Antalya,
Turkey, February 6‒10, 2013. Ankara: Middle East Technical University
(ISBN 978-975-429-315-9). 156-165 (2013).
py: 2013
pu: Ankara: Middle East Technical University
la: EN
cc: E59 D39 D49
ut: professional development; interconnecting task; proof development;
geometry; teacher collaboration
ci:
li:
ab: Summary: This paper discusses a possibility to use interconnecting ‘proof
problems that allow multiple solutions for teachers’ professional
development. Groups of teachers, which consisted of practitioners from
various K‒12 grade levels, were asked to produce several proofs of a
given statement. I present a sampling of these proofs, which includes
approaches and ways of reasoning specific for each grade level. Moments
of teachers’ collaboration and mutual influence are highlighted. This
training method gives the participants an opportunity to make deeper
mathematical connections as well as to understand better the culture of
proof as a developing process along the entire mathematics curriculum
across all grades.
rv: