Upper secondary school teachers' views of proof and proving : an explorative cross-cultural study

This paper reports the results of initial explorations about teachers’ views of proofand proving in upper secondary school context in Sweden, Estonia and Finland. Thestudy was carried out in order to develop a questionnaire for a cross-culturalcomparative survey in Baltic countries and Nordic countries with respect of theculture of proof in school mathematics (NorBa Proof Project). The data consistsmainly of teachers’ written responses to some open questions concerning their viewsof proof and the meaning of dealing with proof in upper secondary school context.Comparative project concerning the teaching and learning of proof in Baltic and Nordic countrie