1. Engaging Students with Integrated STEM Education: a Happy Marriage or a Failed Engagement?

   • Haydée De Loof
   • Jelle Boeve-de Pauw
   • Peter Van Petegem

   OriginalPaper 20 August 2021 Pages: 1291 - 1313

   

2. Instructional guidelines based on conceptions of students and scientists about economic and population growth within planetary boundaries

   • Irene Lampert
   • Kai Niebert
   • Markus Wilhelm

   OriginalPaper Open access 25 August 2021 Pages: 1315 - 1336

3. Development and Validation of an Instrument for Measuring Chinese Chemistry Teachers’ Perceived Self-Efficacy Towards Chemistry Core Competencies

   • Peng He
   • Changlong Zheng
   • Tingting Li

   OriginalPaper 10 September 2021 Pages: 1337 - 1359

   

4. Spanish Preservice Primary School Teachers’ Understanding of the Tides Phenomenon

   • María Armario
   • José María Oliva
   • Natalia Jiménez-Tenorio

   OriginalPaper Open access 14 September 2021 Pages: 1361 - 1386

   

5. Mathematical Modeling in the Elementary Grades: Developing and Testing an Assessment

   • Erin E. Turner
   • Amy Roth McDuffie
   • James E. Smith

   OriginalPaper 17 August 2021 Pages: 1387 - 1409

   

6. Implementing Confidence Assessment in Low-Stakes, Formative Mathematics Assessments

   • Colin Foster

   OriginalPaper Open access 03 September 2021 Pages: 1411 - 1429

   

7. South African Primary Mathematics Teachers’ Experiences and Perspectives About Lesson Study

   • David Sekao
   • Johann Engelbrecht

   OriginalPaper 03 September 2021 Pages: 1431 - 1453

   

8. Student Engagement in a Flipped Secondary Mathematics Classroom

   • Mustafa Cevikbas
   • Gabriele Kaiser

   OriginalPaper Open access 04 September 2021 Pages: 1455 - 1480

   

9. The Effects of Concrete-Representational-Abstract Sequence Instruction on Fractions for Chinese Elementary Students with Mathematics Learning Disabilities

   • Shudong Zhang
   • Shuyuan Yu
   • Ting Jiang

   OriginalPaper 07 September 2021 Pages: 1481 - 1498

   

10. Semiotics from a Social Constructivist Perspective

    • Michelle Stephan
    • Didem Akyuz

    OriginalPaper 21 September 2021 Pages: 1499 - 1519

    

11. Lessons from Lockdown: Parent Perspectives on Home-learning Mathematics During COVID-19 Lockdown

    • Lisa Darragh
    • Nike Franke

    OriginalPaper 26 September 2021 Pages: 1521 - 1542

    

12. Insights into Students’ Geometric Reasoning Relating to Prisms

    • Ann Downton
    • Sharyn Livy

    OriginalPaper 25 September 2021 Pages: 1543 - 1571

13. Design of Classroom Discussions and the Role of the Expert in Fostering an Effective and Aware Use of Examples as a Means of Argumentation

    • Annalisa Cusi
    • Shai Olsher

    OriginalPaper Open access 05 October 2021 Pages: 1573 - 1593

    

14. Mathematics Assessment Practices of Primary School Teachers in France

    • Nathalie Sayac
    • Michiel Veldhuis

    OriginalPaper Open access 14 October 2021 Pages: 1595 - 1610

    

15. Development of Prospective Teachers’ Noticing Skills Within Initial Teacher Education

    • Reyhan Tekin-Sitrava
    • Gabriele Kaiser
    • Mine Işıksal-Bostan

    OriginalPaper Open access 21 September 2021 Pages: 1611 - 1634