Biology IA Introduction
Over the course of your two years, you will need to complete a single piece of Internal Assessment for IB Biology: the Internal Investigation or "II". This will represent your only part of your IB grade completed in class, with the rest coming from the IB exam.
Each II is an individual piece of work based on different data collected or measurements generated. Students should work on their own when collecting data, and should complete a unique experiment. This will be worth 20% of your final IB grade, as shown below.
Each II is an individual piece of work based on different data collected or measurements generated. Students should work on their own when collecting data, and should complete a unique experiment. This will be worth 20% of your final IB grade, as shown below.
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Higher level grading
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Standard level grading
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The internal assessment task will be one scientific investigation taking about 10 hours and the write-up should be about 6 to 12 pages long. Investigations exceeding this length will be penalized in the communication criterion as lacking in conciseness.
Your II will be graded on a combination of five criteria, worth 24 points total.
The IB assessment models use markbands and advise examiners and teachers to use a best-fit approach in deciding the appropriate mark for a particular criterion. This means that students will be graded based on which descriptors most accurately describe their work, understanding that a perfect-fit is rare and some judgement is needed.
Biology IA criteria
