Overview
The IB Environmental Systems and Societies Internal Assessment is worth 25% of your final ESS grade — often the difference between a 5 and a 7 when exams go wrong. Unlike past papers, the IA is coursework you control months before exams. This guide explains criteria, structure, and the mistakes moderators see every year.
What examiners mark
For the IB Diploma Programme, similar to Geography IA: context, planning, results, analysis/evaluation with explicit systems and sustainability framing.
Recommended structure
Research question linking environment and society → methodology → data → analysis with syllibus concepts (stakeholders, feedback loops) → conclusion → evaluation.
Workflow for a top-band IA
For the IB Diploma Programme, pick a local issue (water quality, waste, energy use). Show both environmental and social dimensions in every section.
Common pitfalls
For the IB Diploma Programme, pure science report without society angle; no ethical consideration; weak link to syllabus terms; no secondary sources.
Criterion practice on MarkScheme
Draft sections can be checked against IB assessment language — [get feedback on your IA writing](/mark?subject=ib-environmental-systems-and-societies-sl) where supported, and use syllabus [lessons](/ib/courses/environmental-systems-and-societies-sl) to strengthen methodology and subject vocabulary.
Frequently asked questions
This section covers Frequently asked questions — what IB examiners reward most often in past papers and coursework.
ESS vs Geography IA?
ESS must emphasise systems and sustainability trade-offs — not just spatial patterns.
Group 3 or 4?
ESS sits in both — IA still follows ESS guide criteria.
Papers?
ESS past papers for exam technique.