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Review/revision
Review Topic 2 Productivity and Biomes
Productivity is a crucial concept for understanding many ecological challenges. Why do some places have more biodiversity than others? Why do some systems have more resilience than others? In this video...
Review/revision
Review Topic 6 Stratospheric Ozone
Students are often nervous about this topic as it involves lots of chemistry but really it can be kept quite simple. Names of compounds can be written and molecules sketched. Students should avoid writing...
DP essentials
Sample Extended Essay - World Studies
Sample Extended Essay - World Studies I have many students in our school that benefit from choosing to do a world studies essay. ESS and business or economics go together very nicely and I have supervised...
DP essentials
Sample Extended Essay - Water
This extended essay, submitted in 2016, with the old format, was graded a top B. It was inspired by a variety of sustainable city indices and saught to analyse why Amsterdam was rated more highly than...
DP essentials
Sample Extended Essay - Carbon Footprints
This is one of my favourite extended essays because it arose from a student's interest in the impact our school has on the environment and what we can do about it. She was motivated by a desire to see...
Review/revision
Exam Tips - Data Response Free
We have a wide range of students taking ESS and many have chosen the course as their "Science" in the hope of perhaps avoiding having to deal with data. With the interdisciplinary nature of the course,...
Review/revision
Review Topic 2 Energy Flow
My students always seem to have difficulty when we start with Ecology. I made this 30 minute video to review the ideas of energy flow, looking at key terminology and concepts. A copy of the text is available...
Review/revision
Review Topic 1 Feedback Loops
My students asked for some extra help with feedback loops and so I created this c. 30 minute video for them to review. The resulting document can be downloaded here....