MYP Years 4 & 5 · Free & open
Clear, carefully written notes for the Middle Years Programme, built around how you're really assessed, with worked examples, key terms and command-word practice. No sign-ups, no paywall.
The library
Every subject is broken down by topic, then by concept, so you can revise a whole unit or fix a single sticking point.
Number, algebra, geometry, statistics and probability: the core MYP mathematics pathway, explained step by step.
The deeper pathway: quadratics, functions, advanced algebra and proof-style reasoning for students aiming higher.
Forces, energy, electricity and waves: the rules that govern how the physical world behaves, with the maths made friendly.
Atoms, bonding, reactions and the periodic table: building intuition for why substances behave the way they do.
Cells, systems, ecology and genetics: the living world explained with clear diagrams and the vocabulary examiners want.
Analysis, structure and style: how to read closely and write the kind of response that hits Criterion A.
How it works
Most revision material is either too thin to teach you anything or too dense to finish. These notes sit in the middle, and they're honest about how the MYP actually marks you.
Each note takes a single concept and builds it up from the ground: plain language first, then the technical version, then a worked example you can copy the method from.
The MYP marks against four criteria per subject. Every note points out where a topic is tested and what a top-band answer looks like, so revision translates into marks.
Notes end with quick "check yourself" questions and worked solutions, so you can find out whether it stuck before an assessment does it for you.
About
Nota Bene started as one person's revision folder: the explanations that finally made things click, tidied up and shared so nobody has to relearn them from scratch. It's free because good notes shouldn't sit behind a subscription, and it grows a topic at a time. If a note ever gets something wrong, that's a bug worth fixing, not a footnote.