
HL Paper 3 (AA and AI)
One book and 18 chapters on the HL Paper 3 investigation for AA and AI, with eight full practice papers.


Photon Guidebook · 2026 Edition
Applications and Interpretation is a calculator course, so these two volumes teach it that way: the GDC steps sit next to the reasoning, and every worked answer shows what the examiner wants written down.
Free sample: Chapter 2, Sequences, series and financial mathematics. Full title: Photon Guidebook: Mathematics Applications and Interpretation HL for the IB Diploma, by Ejaz Ahmad with the Photon Academy team.
Who it's for
Also inside
Volume 2 closes with a chapter on the Paper 3 modelling investigations and a chapter on exam technique for all three papers.
Worked solutions to the practice questions are free on the publisher's site: IB Maths AI HL worked solutions.
The same four-part pattern runs through the book, so you always know where you are.
24 chapters, 1,326 pages, in two volumes.
Eight real pages, shown exactly as the e-book displays them. Tap any page to open it at full size, or read the whole sample.








Payments are handled by Photon Academy (Singapore), the publisher.
Volume 1
S$100SGD, one-time
Volume 2
S$100SGD, one-time
The Buy button opens the publisher's checkout on ibtuition.sg. You sign in with Google first, so the book is linked to your account, then pay by card, Apple Pay, Google Pay or PayNow through HitPay.
The book opens in your browser as soon as payment clears.
The author
Ejaz Ahmad has taught IB Diploma maths and physics since 2015 and is IB-certified for Mathematics: Analysis and Approaches HL and Physics HL. He holds a mechanical engineering degree from the National University of Singapore and has taught more than 1,000 IB students. He writes the guidebooks with the Photon Academy team.
Questions
In the page-turn reader in any up-to-date browser on a phone, tablet or laptop. It has a contents navigator and search, and there is nothing to install.
Two years from purchase, for each volume you buy. Your access is tied to the Google account you sign in with when you pay.
No. Each can be bought on its own: the first takes you through units 1 to 3, the second through units 4 and 5, paper 3 and exam strategy.
No. It is a personal licence read online, and each page is watermarked with the buyer's account. A printed edition is in preparation.
No. Every question and worked solution is original, written by Photon Academy in the style of the exam. The book does not reproduce IB papers, markschemes or booklets.
Photon Academy in Singapore, the publisher. Checkout runs on ibtuition.sg through HitPay, which accepts cards, Apple Pay, Google Pay and PayNow. Prices are in Singapore dollars and your card provider converts them.
Use these alongside the book. All free to read, no sign-in.

One book and 18 chapters on the HL Paper 3 investigation for AA and AI, with eight full practice papers.

Two volumes and 19 chapters for the full Higher Level course, with Paper 3 and exam technique in Volume 2.

One volume and 12 chapters for the full Standard Level course, ending with a chapter on exam technique.