This resource provides structured teaching notes for IB DP Chemistry Topic S3.2: Functional Groups – Classification of Organic Compounds, aligned with the IB Chemistry 2025 syllabus. The notes help teachers organise the key ideas in the topic and can also be used by students as summary material for revision.
Topic S3.2 introduces how organic compounds are classified based on the functional groups present in their structures. Functional groups are specific atoms or groups of atoms that determine the characteristic physical and chemical properties of organic compounds.
The material follows the structure of the IB subject guide and can be adapted to suit different teaching approaches.
What’s Included
Comprehensive teaching notes (PDF)
Editable PowerPoint version of the notes
Structured explanations of key ideas in S3.2 Functional Groups
Content organised according to the IB Chemistry syllabus
The materials can be used as teacher reference notes, lesson preparation material, or student revision summaries.
Important Note About the PowerPoint
The PowerPoint is not a classroom-ready presentation.
It is simply an editable version of the teaching notes presented in slide format. The slides contain the same information as the PDF and are intended for teachers to adapt, shorten, or reorganise when creating their own classroom presentations.
Topic Coverage
This resource supports teaching of the main concepts in S3.2 Functional Groups, including:
Representation of organic compounds using different formula types
Identification of common functional groups
Classification of organic compounds into homologous series
Trends in physical properties within homologous series
Basic IUPAC naming rules for organic compounds
Introduction to structural isomerism
Students also learn to recognise common functional groups such as halogeno, hydroxyl, carbonyl, carboxyl, amino, ester, amide, and phenyl, which determine the behaviour and reactivity of organic molecules.
Typical Uses
Teachers commonly use this resource to:
organise lessons for Topic S3.2 Functional Groups
provide structured notes for students
adapt the slides into their own teaching presentations
support revision and exam preparation
This resource provides clear teaching notes and editable materials that teachers can modify and integrate into their own IB Chemistry lessons.
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