Margaret A.L. Blackie is Senior Lecturer, Department of Chemistry and Polymer Science, Stellenbosch University, South Africa. Hanelie Adendorff is Senior Advisor, Faculty of Science, Centre for Teaching and Learning, Stellenbosch University, South Africa. Marnel Mouton is Senior Lecturer, Department of Botany and Zoology, Stellenbosch University, South Africa.

• 1. Enacting Legitimation Code Theory in science education, Part I – Academic Support in Science, 2. Becoming active and independent science learners: Using autonomy pathways to provide structured support, Part II – Physical Sciences, 3. Improving assessments in introductory Physics courses: Diving into Semantics, 4. Building complexity in Chemistry through images, 5. Using variation in classroom discourse: Making Chemistry more accessible, 6. Radiation physics in theory and practice: Using Specialization to understand ‘threshold concepts’, Part III – Biological Sciences, 7. Interdisciplinarity requires careful stewardship of powerful knowledge, 8. Advancing students’ scientific discourse through collaborative pedagogy, 9. Using Autonomy to understand active teaching methods in undergraduate science classes, Part IV – Mathematical Sciences, 10. A conceptual tool for understanding the complexities of mathematical proficiency, 11. Supporting the transition from first to second-year Mathematics using Legitimation Code Theory, Part V – Science Education Research, 12. Navigating from science into education research