2021

• Academic lecture
  Tesfamicael, Solomon Abedom; Lundeby, Øyvind Andersen; Getie, Berie; Soforon, Oduho George Ben. (2021) Problem posing in mathematics education: comparative study of textbooks in Ethiopia, South Sudan and Norway. The Ninth Nordic Conference on Mathematics Education, NORMA 20 , Oslo 01.06.2021 - 04.06.2021

2019

• Academic lecture
  Tesfamicael, Solomon Abedom; Lundeby, Øyvind Andersen; Sikko, Svein Arne. (2019) TEXTBOOK RESEARCH VIA THE ANTHROPOLOGICAL THEORY OF DIDACTICS (ATD): THE CASE OF REPRESENTATION OF FUNCTIONS. Third International Conference on Mathematics Textbook Research and Development (ICMT 3) 16.09.2019 - 19.09.2019

2017

• Academic lecture
  Tesfamicael, Solomon Abedom; Lundeby, Øyvind Andersen. (2017) Comparative study on Text book: the case of Relations and Functions. Seksjons Seminar på Brekstad , Brekstad 28.09.2017 - 29.09.2017
• Poster
  Tesfamicael, Solomon Abedom; Botten, Geir Harald; Lundeby, Øyvind Andersen. (2017) The teaching and learning of relations and functions: A comparative study of Norwegian and Ethiopian textbooks. CERME 10 , Institute of Education, Dublin City University 01.02.2017 - 05.02.2017

2016

• Academic lecture
  Tesfamicael, Solomon Abedom; Botten, Geir Harald; Lundeby, Øyvind Andersen; Duguma, Tadesse Guluma. (2016) Teaching and Learning Mathematics in Ethiopian Schools As compared to the Norwegian schools (A Comparative study). Nordisk lærerutdanning i et internasjonalt perspektiv , Rotvoll, Trondheim 10.05.2016 - 13.05.2016