Approximation, significant figures and scientific notation

This sub-topic covers core foundational skills for rounding values to the correct precision, counting significant figures, and writing very large or small numbers in scientific notation, which are required for all IB AA SL exam questions.

📖Study Guide

In-depth bilingual notes with worked past paper examples.

✍️Practice Exam

Timed practice questions with mark scheme grading. Coming soon.

🎴Flashcards

Spaced repetition for key concepts and definitions. Coming soon.

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Interactive plots and diagrams to build intuition. Coming soon.

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