NOMAD 12(3), 2007. Posing problems using Cabri

Skapad: 2007-11-02. Ändrad: 2007-11-02  

NOMAD 12(3), 2007. Posing problems using Cabri

LIL ENGSTRÖM AND THOMAS LINGEFJÄRD

Abstract

The purpose of Engström’s research was to investigate in which ways and to what extent three different teachers, one in Switzerland and two in Sweden, used a specific dynamical geometry software, Cabri Géomètre, in upper secondary school.
The method consisted mainly of field notes and audio recording during observations in classrooms. The field research was then analysed and evaluated according to the following questions: a) How do teachers pose problems and b) how do teachers make students’ experiences useful when Cabri Géomètre is accessible?
The result showed that one important factor enabling to challenge the pupils in learning mathematics when using Cabri Géomètre is the way the teacher poses the problems or the questions. The word ’challenging’ means among other things, that the pupils continue asking themselves questions so that there will be continuous learning, not limited to finding just one correct answer.

Sammanfattning

Artikeln presenterar en studie av hur tre gymnasielärare, en i Schweiz och två i Sverige, använder dynamisk programvara, Cabri Géomètre, i sin matematikundervisning. Empirin består av ljudupptagningar och fältanteckningar från lektionsobservationer. Anlysen genomfördes med avseende på lärarens problemformuleringar samt hur läraren tar vara på elevernas erfarenheter när Cabri Géomètre används.
Resultatet visar på betydelsen av hur läraren formulerar problemen eller uppgifterna för att utmana eleverna, samt för att utnyttja programvarans särskilda förutsättningar. I en laborativ undervisningsmiljö i matematik kan ett dynamiskt datorprogram skapa möjligheter för elever att lära sig längs ej förväntade vägar.

LIL ENGSTRÖM
Lil Engström is assistant professor in mathematics education at Stockholm Institute of Education. She has an extensive experience of teaching in lower and upper secondary school. For 14 years she has educated prospective matehmatics teachers both for primary, lower and upper secondary school. She has been involved in different projects about using computers in the classroom and also been a speaker in a number of international conferences about Cabri Géomètre.

THOMAS LINGEFJÄRD
Thomas Lingefjärd is associated professor (docent) in mathematics education at Gothenburg university and has long experience of teaching mathematics and mathematics education with or without the aid of technology. He share his time between teaching, supervising and research. Most recently Thomas Lingefjärd was a member of the International program Committee for the 14th ICMI Study: Modelling and applications in mathematics education and he is also a member of the recently funded European Comenius project DQME II.