Activities
2.1: Using the Lincoln Index
This page shows how you can investigate populations using the Lincoln Index. Using the Lincoln Index Using the Lincoln Index, also known as capture-mark-recapture, we capture the organism, mark it in...
External Assessment
Past Paper Case Studies
On this page we are keeping a record of the context (location) and theme for each of the resource booklet case studies. Prior to 2017, these were Paper 2 Section A and worth 25 marks and so could make...
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Activities
Answers: 2.1 Lincoln Index Activity
Find answers to the lincoln activity worksheet here Answers The question number corresponds to the questions on the analysis and reflection sections of the handout Is there an inference you can draw...
Activities
Determining Numbers - "How Many?"
This page introduces you to the ways you can determine “how many” motile organisms are in a habitat or ecosystem. Determining Numbers - "How Many?" "Direct and indirect methods for estimating the abundance...
eBook
2.1 Individuals and Populations, Communities and Ecosystems
This subtopic introduces the fundamentals of ecology including the concept of a niche, population biology, measuring populations, carrying capacity, keystone species, biosphere integrity and planetary...
Designing Your Course
Teaching Sequences from 2024
In these pages, Zoe provides some ideas for how she organises her lessons with a mix of activities and practical / experimental ideas. Zoe's lessons were usually 70 minutes long, with a 60 minute period...
Activities
5.2 Impact of Feeding on Different Trophic Levels
In this activity you will explore the energy transfer impacts of feeding on different trophic levels. This will help to explain why meat consumption has a big impact on climate change. This has amazing...
Activities
SL/HL 2.2 Impact of Feeding on Different Trophic Levels
In this activity you will explore the energy transfer impacts of feeding on different trophic levels. This will help to explain why meat consumption has a big impact on climate change. This has amazing...
Activities
Environmental Scrap Book
On this page, we give you the opportunity to create an environmental scrapbook to keep a record of the news stories that you come across during your time with ESS. Keeping up with the news about the environment...
Designing Your Course
Teaching HL ESS
On this page, we provide some insights into teaching HL ESS. The course has only been "live" since 2024, with the first exams in 2026, so for many teachers, this is their first experience of teaching...