Various
Hugleiðing í messu Átthagafélags Sléttuhrepps 22. maí 2016
A reflection in a service for former inhabitants in Sléttuhreppur, a district in North-West Iceland, evacuated in the early 1950s.
"History of Mathematics Education" í UNESCO-EOLSS, an Integrated Compendium of Twenty Encyclopedias. Published in a closed website.
Member of the organization committees of the International Conferences on the History of Mathematics Education, held in 2009 in Gardabaer, 2011 in Lisbon, 2013 in Uppsala, 2015 in Turin, 2017 in Utrecht and 2019 in Marseille.
Member of the editorial committees the conference proceedings "Dig Where You Stand" 1, 2, 3, 4, 5, 6.Hugleiðing í messu Átthagafélags Sléttuhrepps 22. maí 2016
A reflection in a service for former inhabitants in Sléttuhreppur, a district in North-West Iceland, evacuated in the early 1950s.
"History of Mathematics Education" í UNESCO-EOLSS, an Integrated Compendium of Twenty Encyclopedias. Published in a closed website.
Member of the organization committees of the International Conferences on the History of Mathematics Education, held in 2009 in Gardabaer, 2011 in Lisbon, 2013 in Uppsala, 2015 in Turin, 2017 in Utrecht and 2019 in Marseille.
Member of the editorial committees the conference proceedings "Dig Where You Stand" 1, 2, 3, 4, 5, 6.