CIE IGCSE Biology Grade Boundaries (2023-2024)

Grade boundaries are a key element of the education system, designed to ensure student grades accurately reflect their knowledge, understanding, and mastery of a subject. These boundaries are established by the different exam boards, AQA, Edexcel, and OCR, and they play a crucial role in determining final grades, shaping academic progression, and influencing future opportunities.

On this page, you'll find the latest grade boundaries for CIE IGCSE Biology, with insights to help you interpret them and practical tools to support your exam success.

SubjectYearMonthMaximum MarkGrade 9Grade 8Grade 7Grade 6Grade 5Grade 4Grade 3Grade 2Grade 1
Biology (BX) 21, 41, 512023June20016715213711810082665035
Biology (CX) 21, 41, 612023June20016815313811910082665035
Biology (CY) 22, 42, 622023June20017115514012410893745537
Biology (FX) 11, 31, 512023June200130123987349
Biology (GX) 11, 31, 612023June200131123987349
Biology (GY) 12, 32, 622023June200126112947658
Biology (BY) 22, 42, 522023November20016815313812310893766044
Biology (CY) 22, 42, 622023November20016815313812310893766044
Biology (GY) 12, 32, 622023November2001481231017957
Biology (BX) 21, 41, 512024June2001661501341159779655239
Biology (CX) 21, 41, 612024June2001671511351169880665239
Biology (CY) 22, 42, 622024June20017716114512710991735537
Biology (FX) 11, 31, 512024June200131115937251
Biology (GX) 11, 31, 612024June200132116947251
Biology (GY) 12, 32, 622024June200131115978063
Biology (BY) 22, 42, 522024November200175161147131116101836547
Biology (CY) 22, 42, 622024November200175161148132116101836547
Biology (GY) 12, 32, 622024November200145120977452

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What is the best way to prepare for your CIE Biology exam?

Preparing for your IGCSE exam requires the right resources and strategies. Here are some tools that can help you improve your performance:

  • Exam Questions: Use CIE IGCSE Biology exam questions to improve your knowledge on weaker topics. This will make it more likely that you will achieve higher raw marks in your IGCSE Biology exam.

  • Past Papers: Practice with CIE IGCSE Biology past exam papers to familiarise yourself with the format and types of questions. This helps in understanding how grade boundaries are applied in real exams.

  • Flashcards: Review key terms, formulas, and concepts with CIE IGCSE Biology flashcards to strengthen memory and understanding. This quick, efficient method is especially helpful for last-minute revision, making it easier to recall important information on exam day.

  • Revision Notes: Use CIE IGCSE Biology revision notes to break down complex topics into concise summaries. These notes help ensure you cover all essential content, providing a clear, structured way to review material before the exam.

  • Marking Schemes: Reviewing marking schemes can provide insights into how marks are awarded and what CIE examiners look for in responses.

Understanding IGCSE Grade Boundaries for CIE Biology

Grade boundaries for CIE IGCSE Biology exams play a crucial role in understanding your final results. These boundaries are set to define the minimum scores needed for each grade, ensuring consistent assessment standards across different exam sessions. Here’s some key information that’s useful to know:

  • Purpose of Grade Boundaries: Grade boundaries provide a standardised measure of student performance across various exam sessions. For example, CIE sets specific grade boundaries for IGCSE Biology to ensure fair grading for all students, whether the exam session was particularly challenging or straightforward.

  • Year-on-Year Shifts in Boundaries: Grade boundaries are not fixed; they can shift annually based on overall student performance and exam difficulty. For instance, if the CIE IGCSE Biology exam in a recent year proved more challenging, the grade boundaries might be adjusted to reflect that difficulty. This flexibility ensures that the students who took a more difficult paper aren’t unfairly disadvantaged.

  • Raw Marks vs. Scaled Marks: In CIE Biology exams, you’ll often encounter both raw marks and scaled marks. Raw marks are your original scores based on correct answers, while scaled marks adjust for any variations in exam difficulty. This process ensures that achieving a certain grade in CIE IGCSE Biology reflects the same level of understanding and skill, regardless of the exam version or year.

  • Differences Across Boards and Subjects: The criteria for setting grade boundaries can differ by board and subject. For example, the CIE IGCSE boundaries for Biology may not be the same as for other subjects, as each subject demands unique skills and knowledge. This customisation allows CIE to align boundaries with the specific requirements of each Biology exam, ensuring fair and accurate assessment.

Need help reaching your target grade? Explore our notes, questions by topic and worked solutions, tailor-made for CIE IGCSE Biology

Explore CIE IGCSE Biology

How are the CIE IGCSE grade boundaries determined?

Setting grade boundaries is a meticulous process undertaken by CIE. The process involves several factors:

  • Exam Difficulty: The complexity of exam questions is a primary factor. For instance, if the Biology exam is particularly challenging, grade boundaries may be adjusted to ensure fairness.

  • Statistical Analysis: CIE will analyse statistical data on student performance. This includes comparing current results with previous years to maintain consistency in grading standards

  • Moderation: To ensure consistency in grades across the different exam boards, there is a process of moderation. CIE examiners will re-mark IGCSE Biology papers to ensure that the marking process has been fair to all students.

  • Examiner Judgments: Experienced examiners review a sample of CIE IGCSE Biology papers to gauge overall performance levels and set appropriate boundaries.

Got questions?
We’ve got answers

Past papers are vital for preparing for your exam. You can familiarise yourself with the structure and timings of the paper, the types of questions asked and the knowledge and skills needed to ace your exam.You can find Biology past papers for CIE IGCSE papers here.

If you’re feeling behind in Biology, don't worry! Your revision should focus on key concepts and topics that are likely to appear on the exam, you can use past exam papers to get a better idea of what these might be in the future. Create a structured revision timetable that dedicates extra time to key concepts and topics, ensuring the efficient use of your study time.

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