This edited collection focusses upon the need to extend current understanding of the relationships between content knowledge and pedagogy. The authors engage with the drive to both understand, and to develop, content knowledge, and provide multiple tools to understand the interplay between content knowledge, pedagogic content knowledge and classroom practices.

Part 1: Overviews of Mathematics and Science Knowledge for Teaching Mathematics Teachers' Content Knowledge Mike Askew. Science Teachers' Content Knowledge Vanessa Kind Part 2: Challenges to Current Formulations Improving PCK and CK in Science Teachers Elizabeth Mavhunga. Recognising and Illuminating Connections in Proportional Relationships Sarah Bansilal. Novice Unqualified Graduate Science Teachers' Topic Specific Pedagogical Content Knowledge, Content Knowledge and their Beliefs About Teaching Phihlo Pitjeng. Teaching Division: The Importance of Coherence in What is Made Available to Learn Corin Mathews. Profiling Chemistry Teachers' Changing PCK Trajectories Mpunki Nakedi Part 3: Applying/Combining Existing Frameworks - New Insights Planting the Seed: Scaffolding the PCK Development of Pre-Service Science Teachers Adam Bertram and John Loughran. Teachers' Mathematical Discourse in Instruction: Focus on Examples and Explanations Jill Adler and Hamsa Venkat. Using Self-Study to Learn New Topics in Chemistry - A Case Study of Three Practising Teachers Marissa Rollnick. A Love for Mathematical Playfulness as a Key Ingredient of Mathematical Knowledge for Teaching Mellony Graven and Marc Schafer. Developing an Instrument to Assess Grade 12 Teachers' Topic Specific PCK in Organic Chemistry Bette Davidowitz and Nonkanyiso Vokwana. Recognizing and Valuing Teachers' Professional Knowledge of Practice John Loughran.