IBDP Biology Theme A Unit Planner

This detailed IBDP Biology unit planner for Theme A: Unity and Diversity provides everything you need to teach the foundational concepts of the 2023 IB Biology syllabus effectively. It covers all sub-topics in Theme A (A1.1 to A4.2), including water, nucleic acids, origin of cells, cell structure, viruses, diversity of organisms, classification and cladistics, evolution and speciation, and conservation of biodiversity.

Perfect for both SL and HL classes, the planner includes suggested teaching sequences, learning objectives aligned to the IB guide, key concepts, ATL skills development, inquiry-based activities, practical investigations, formative and summative assessment ideas, differentiation strategies, and links to Nature of Science. It also features cross-topic connections to other themes and levels of organisation for a holistic approach.
How to use it in the classroom:

Follow the ready-to-adapt scheme of work for 6–8 weeks of teaching (depending on your timetable).
Use the planner to map lessons, resources, and assessments.
Support student understanding of the big ideas of common ancestry, shared molecular features, and evolutionary biodiversity.
Prepare students thoroughly for IB exams with targeted practice and internal assessment guidance.

Ideal for experienced IB teachers and those new to the updated syllabus, this resource saves planning time while ensuring full syllabus coverage and best practice. Downloadable in editable format for easy customisation to your school context.
Keywords: IBDP Biology, IB Biology Theme A, Unity and Diversity, IB Biology unit planner, new IB Biology syllabus 2025, A1.1 Water, A1.2 Nucleic Acids, A2 Cells, evolution, biodiversity, IB Biology lesson plans, HL SL differentiation.