International A-levels

What is International A Level?

The International A Levels are the most commonly studied curriculum around the world. They are based on the UK high school education system and are adapted for a global student base.

In Year 12 students move on to the A Levels that are further broken down into two parts: the AS Level, called “Advanced Subsidiary”, (usually done in Year 12) and A2 Level (typically done in Year 13). Traditionally, students take 4-5 AS Level subjects and then go on to take 3-4 of those subjects at the A2 Level.


The International GCSE classes course is suitable for students 16-18 years old. In some countries students divide studies over two years.


The A Level courses can be taken as a full-time or part-time option along with other subjects. Students can also take a combination of levels at CGA.


AS Level: 3 units total Two units of 1 hour 30 minutes and 80 marks each One unit of 1 hour 20 minutes and 50 marks A Level: 6 units total Two units of 1 hour 30 minutes and 80 marks each Two units of 1 hour and 45 minutes and 90 marks each Two units of 1 hour 20 minutes and 50 marks each External assessment for all units offered three times a year

Basis of what you will learn in A Level Biology

Students will study Molecules, Diet, Transport & Health; Cells, Development, Biodiversity & Conservation; Energy, Environment, Microbiology & Immunity; Respiration, Internal Environment, Coordination & Gene Technology; and Practical Skills. Students will learn essential knowledge and understanding of different areas of the subject and how they relate to each other. They will get a deep appreciation of the skills, knowledge and understanding of scientific methods as well as competence and confidence in a variety of practical, mathematical and problem-solving skills.


  • Research Scientist
  • Pharmacologist
  • Ecologist
  • Nature conservation officer

Meet your educator

Claudia Guiss

After completing her bachelor's degree in Biological Sciences by the Federal University of Paraná (UFPR), Claudia worked as an associated researcher at CEM-UFPR in the Benthos Laboratory, working mainly with Ecology of salt marshes and mangroves. During that time, she also obtained her Master's Degree in Zoology (PRPPG-UFPR).

During her studies, she learnt about the unique fauna and flora of New Zealand, which fascinated her and she immigrated with her family in 1996. She has taught Science and Biology both in Brazil and New Zealand, in the public and private sectors.

Claudia Guiss


A class of diverse, international students and a community of like-minded peers.


A 24/7 global timetable to suit multiple timezones worldwide.


Top-tier teachers selected for engagement, inspiration and results.

Enquire about our subject offerings

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