George Town / Penang · Functions
Functions Tutoring for Penang IGCSE Add Math Students
Written by Rig, our founder
8 years teaching IGCSE & SPM maths · Updated 19 August 2026
Functions is where 0606’s notation turns strict, and for Penang students it is a topic where feedback quality matters more than location, which is exactly what the island and mainland divide makes uneven. Functions, composite and inverse, domain and range, and modulus, runs through the whole paper, and the exam is unforgiving about how the answer is written.
Where Penang students lose functions marks
The lost marks are notation and order, not understanding:
- Composite functions: means first, then ; reversing it is the classic slip.
- Inverse functions: the domain of the inverse is the separate mark students most often forget.
- Range and one-one: why a domain must be restricted before a function can be inverted.
These are habits, and habits get replaced fastest when a specialist marks every line rather than just the answer.
Penang logistics, taught online
Whether your child is in George Town, on the mainland, or sitting as a private candidate, online 1-to-1 supplies the line-by-line marking that catches notation habits, with no bridge crossing.
Classes are RM80–90/hr in 1.5-hour sessions with a founder-vetted tutor. Start with a 1-hour trial class. Message us on WhatsApp with your child’s situation and year.
More: Functions notes · worked functions examples · Penang tutoring guide.