1. Editorial

   • Arthur Bakker
   • David Wagner

   EditorialNotes 04 January 2021 Pages: 1 - 3

2. Using large-scale data to determine pupils’ strategies and errors in missing value number equations

   • Martin Chvál
   • Naďa Vondrová
   • Jarmila Novotná

   OriginalPaper 26 November 2020 Pages: 5 - 24

   

3. Teacher agency for integrating history into teaching mathematics in a performance-driven context: a case study of a beginning teacher in China

   • Xiaoli Lu
   • Frederick Koon Shing Leung
   • Na Li

   OriginalPaper 18 November 2020 Pages: 25 - 44

   

4. Enjoyment in learning mathematics: its role as a potential barrier to children’s perseverance in mathematical reasoning

   • Alison Barnes

   OriginalPaper 19 November 2020 Pages: 45 - 63

   

5. University student understanding of the gradient of a function of two variables: an approach from the perspective of the theory of semiotic representation registers

   • Oihana Moreno-Arotzena
   • Ion Pombar-Hospitaler
   • José Ignacio Barragués

   OriginalPaper 30 October 2020 Pages: 65 - 89

   

6. Seeing quadratics in a new light: secondary mathematics pre-service teachers’ creation of figural growing patterns

   • Karina J. Wilkie

   OriginalPaper 12 November 2020 Pages: 91 - 116

   

7. Inductive and deductive justification of knowledge: epistemological beliefs and critical thinking at the beginning of studying mathematics

   • Benjamin Rott

   OriginalPaper Open access 14 November 2020 Pages: 117 - 132

8. The role of generic examples in teachers’ proving activities

   • Muhammed Fatih Dogan
   • Caro Williams-Pierce

   OriginalPaper 03 November 2020 Pages: 133 - 150

   

9. Releasing the conceptual spring to construct multiplicative reasoning

   • Karen Zwanch
   • Jesse L. M. Wilkins

   OriginalPaper Open access 05 November 2020 Pages: 151 - 170