Yanmai Education · since 2021

IB Case Studies

Examples from real tutoring sessions across IB subjects and projects. Student names and identifying details are omitted.

IB Maths lesson screenshot showing data points, a function and a fitted graph in GeoGebra.
Classroom notes · modelling

GeoGebra function modelling

Connect data points to a function graph and explore piecewise fitting and model parameters.

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IB Maths IA paper modelling men’s world-record times from the 100 metres to the marathon.
Draft feedback · IA

Modelling world-record times

An annotated mathematical modelling paper using men’s sprint and marathon world-record times.

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IB Chinese lesson screenshot with rubric comments about knowledge and understanding.
Classroom notes · IA

Rubric and concept annotations

Use the rubric and lesson annotations to develop clear explanations of knowledge, belief and understanding.

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IB Economics Extended Essay document showing the research question and methodology section.
Classroom notes · EE

Methodology and argument structure

Comments on an EE research question and methodology, with discussion of how the analysis supports the argument.

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IB Economics EE paper on Shanghai charging-station subsidies and market efficiency.
Draft feedback · EE

Shanghai charging subsidies and market efficiency

An Economics EE draft on charging-station subsidies and market efficiency, with comments and revisions.

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IB Business Management IA paper on BP’s energy strategy and market performance.
Draft feedback · IA

BP’s energy strategy and market performance

A business analysis paper on BP’s shift in energy strategy and its performance in global markets.

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IB Psychology IA paper on visual information retention and memory.
Draft feedback · IA

Pre-2027 syllabus IA (an experiment), for exams up to November 2026. From May 2027 the IA is a research proposal.

Visual memory and retention time

An annotated Psychology IA on how the retention time of visual information affects memory.

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IB Geography lesson document with several IA research questions highlighted.
Classroom notes · topic planning

Refining a Geography IA research question

Compare candidate questions and decide which variables and scope make the investigation workable.

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IB Geography IA paper on distance, footfall and restaurant price differences.
Draft feedback · IA

Distance, footfall and restaurant prices

A Geography IA draft examining spatial distance, visitor numbers and differences in restaurant prices.

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IB Chemistry lesson screenshot with annotations on structures, reaction arrows and equations.
Classroom notes · reaction analysis

Reaction pathways and equations

Annotated structures, arrows and equations to clarify reaction steps and conditions.

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IB Chemistry IA paper investigating temperature and crystal violet reaction rate.
Draft feedback · IA

Temperature and crystal violet reaction rate

A Chemistry IA investigation of temperature and crystal violet reaction rate, with page-by-page feedback.

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IB Biology lesson screenshot showing an example IA research question.
Classroom notes · research design

Developing a Biology IA research question

Use a Biology IA example to clarify variables, scope and whether the investigation can be carried out.

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IB Biology IA paper on how pH affects alpha-amylase activity.
Draft feedback · IA

pH and alpha-amylase activity

An annotated Biology IA draft investigating the relationship between pH and alpha-amylase activity.

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IB Physics lesson screenshot showing a projectile trajectory and angle diagram.
Classroom notes · topic lesson

Projectile motion

Use board work and a diagram to examine how angle and speed relate to distance and trajectory.

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IB Physics IA paper on salt concentration and buoyancy.
Draft feedback · IA

Salt concentration and buoyancy

A Physics IA draft on salt concentration and buoyancy, with comments on its structure and content.

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IB Computer Science lesson screenshot comparing statistical methods and neural networks.
Classroom notes · methods comparison

Statistical methods and neural networks

Compare the focus of statistical methods and neural networks to frame a machine-learning research question.

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IB Computer Science IA paper on a recipe recommendation system using available ingredients.
Draft feedback · IA

Recipe recommendations from available ingredients

A Computer Science IA proposal and annotated document for a system that matches ingredients with recipes.

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IB Design Technology lesson screenshot showing examples of image balance, scale and colour.
Classroom notes · visual design

Visual composition and colour

Slides analyse balance, scale and colour relationships in visual design.

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IB Visual Arts Extended Essay on O’Keeffe’s flower paintings and symbolism.
Draft feedback · EE

O’Keeffe’s flower paintings and symbolism

Comments on an art research essay about visual language in O’Keeffe’s flower paintings and symbolism.

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TOK essay plan with key terms, knowledge questions and argument structure.
TOK · essay planning

Structuring a TOK essay plan

Break down key terms, knowledge questions and argument structure to build a clear TOK essay plan.

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The learning journey

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