Toolkits
Deep dives on the ideas that show up everywhere. Each one starts with why the idea exists at all — the problem it was invented to solve, what it actually does, and where it turns up outside a classroom — and then goes through it properly: the full explanation, the table you actually need, worked examples, and the mistakes that cost marks.
Every unit
The mole is a counting unit
A balanced equation counts particles and a balance measures grams. The mole connects them, and every quantitative question in the course is a path through it.
Open the toolkit
Names and formulas
Naming: a decision tree
Four questions asked in order turn any name into a formula and any formula into a name — plus the five traps that account for nearly every lost mark.
Open the toolkit
How to use these
- Wondering why any of this is a thing? Read the opening section. It is the part a textbook usually skips.
- Stuck on a question type? Open the toolkit for that idea and find the worked example closest to it.
- Revising? Read the tables and try the checks, then go to practice questions to see whether it stuck.
- Revising for a final? There is no diploma exam in Grade 11, so your school sets the exam — the printable worksheets are the closest thing here to sitting one.