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The FourtyFive blog

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Study science, exam strategy, IB syllabus deep-dives and the maths behind smarter revision. Written for IB Diploma students — and the parents and teachers helping them.

Topic · Derivatives Math AA HL
Capability86
Fluency72
Retention58
Confidence80
Awareness66
Momentum78
Mastery — last 7 sessions
Mastery score
76 / 100 +5 this week

Strong recent performance, but retention is fading on chain-rule problems answered >14 days ago.

Capability · 86 Retention · 58 Confidence · 80
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