IB Math AI SL · 2021 to 2026

2.6 Modeling skills

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SL archive · 2021 to 2026

2.6 Modeling skills

Latest exam session: May 2026

questions
questions
papers
papers
exam sessions
exam sessions
By year3micro-topics

Micro-topics in 2.6 Modeling skills

In syllabus order. The ring is the share of papers each appears in.

  • 4

    2.6.1

    Choosing the right model type

    2 questions · in 4% of papers

    Less common

    last May 22 P2 TZ1

  • 2

    2.6.2

    GDC regression and parameters

    3 questions · in 2% of papers

    Less common

    last May 25 P1 TZ1

  • 28

    2.6.3

    Interpolation, extrapolation, and validity

    18 questions · in 28% of papers

    Frequently tested

    last May 26 P2 TZ3

Exam pattern

How often each micro-topic has been examined, year by year. Each label is explained under the grid.

Does it repeat?

Questions per year for each micro-topic.

fewermore

Micro-topic202120222023202420252026
2.6.3Interpolation, extrapolation, and validityFrequently tested
2Interpolation, extrapolation, and validity, 2021: 2 questions·Interpolation, extrapolation, and validity, 2022: 0 questions8Interpolation, extrapolation, and validity, 2023: 8 questions4Interpolation, extrapolation, and validity, 2024: 4 questions2Interpolation, extrapolation, and validity, 2025: 2 questions2Interpolation, extrapolation, and validity, 2026: 2 questions
2.6.2GDC regression and parametersLess common
·GDC regression and parameters, 2021: 0 questions·GDC regression and parameters, 2022: 0 questions·GDC regression and parameters, 2023: 0 questions·GDC regression and parameters, 2024: 0 questions3GDC regression and parameters, 2025: 3 questions·GDC regression and parameters, 2026: 0 questions
2.6.1Choosing the right model typeLess common
·Choosing the right model type, 2021: 0 questions2Choosing the right model type, 2022: 2 questions·Choosing the right model type, 2023: 0 questions·Choosing the right model type, 2024: 0 questions·Choosing the right model type, 2025: 0 questions·Choosing the right model type, 2026: 0 questions
  • Frequently testedin at least a quarter of all papers, and still appearing in the last two years
  • Less commonin fewer than one paper in fifteen

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Questions on 2.6 Modeling skills, by exam session

Which papers asked about 2.6 Modeling skills, and which question numbers. Open a paper to see them highlighted.

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Frequently asked questions

Short answers about this page.

Which Math AI SL exam sessions are covered for 2.6 Modeling skills?

12 exam sessions from 2021 to 2026, the latest May 2026. Every Paper 1 and 2 in every timezone is read and classified in full, which gives 16 papers in this archive.

Which 2.6 Modeling skills topic comes up most?

Interpolation, extrapolation, and validity (2.6.3): in 28% of papers, last seen May 26 P2 TZ3. Usually "Find / State", worth about 2.5 marks in a paper that includes it.

Can I see the original question and mark scheme?

No. The wording belongs to the IB. You get the citation, the marks, the command term and the skill tested, plus our own matched practice questions with worked answers and AI marking.

What do "banker", "due" and "rising" mean?

Banker: examined in at least one sitting in four and still appearing. Due: regular before, but absent for the last two exam sessions. Rising: clearly more common in the last two years. Our classification of real papers, not an IB statistic.

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Reading this page and the exam pattern is free. A free account generates three sets of ten questions and launches one practice set. Pro opens every question in any scope, sets of twenty or all, and unlimited practice.

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