Revising Brevet maths starting from what is fragile.
First find out what holds and what wobbles, then work on that, chapter by chapter. No need to go through the whole 3e syllabus in textbook order.
Exam topics and format should be checked each year on Eduscol.
One 3e question, now
In a triangle ABC with a right angle at A, AB = 6 cm and AC = 8 cm. Find BC.
Your answer
The chapters that come up, and the trap in each.
The most common Brevet mistakes are recognition mistakes: knowing which tool to use.
Pythagoras’ theorem
Trap: adding the lengths instead of the squares.
Thales’ theorem
Trap: not recognising the configuration in a complex figure.
Expanding, factorising
Trap: the minus sign in front of the bracket.
Linear equations
Trap: moving a term across without changing its sign.
Linear functions
Trap: confusing image and pre-image.
Probability
Trap: counting outcomes that aren’t equally likely.
The method in four steps.
The one you can follow on your own, with or without Coach.
Spot what wobbles
Sit a Brevet practice paper in Coach, or redo one exercise per chapter. The result tells you where to work.
Work on what wobbles
Chapter by chapter, starting from the missing prerequisites.
Restitute without help
Do it again in another context, where remembering the chapter is no longer enough.
Practise under exam conditions
A timed Brevet practice paper, without help, then the answer key question by question.
Sit a Brevet practice paper in Coach.
Timed or assisted, with the answer key and the marking scheme. Free during the beta.