Free guide to approved graphing calculators for H2 Maths (9758) in 2026: SEAB-approved models (TI-84, Casio fx-CG50), how to enter exam mode, GC keystrokes for A-Level papers, a...
Q: What does H2 Maths Graphing Calculator Guide 2026 (Approved Models + Exam Mode) cover? A: Concise guide to approved models, exam mode, and the graphing-calculator workflows used in GCE A-Level H2 Maths.
TL;DR The H2 Mathematics syllabus expects the use of an approved graphing calculator (no CAS), and the examination papers are set with the assumption that candidates have access to a GC. Pick a stable model, practise workflows weekly, and always cross-check your school's official approved-models circular each year.
The model must be approved: A good calculator is useless if it is not allowed.
Model, OS version, and exam-mode routine: Approval can depend on exact details.
Practise weekly with the same unit: Exam confidence comes from muscle memory, not the box.
Concrete example: Before buying or updating a TI or Casio model, compare the exact model name and OS version with the latest SEAB list and your school's circular. Then practise clearing memory and setting angle mode before timed work.
For the wider H2 Maths roadmap and related drills, see our H2 Maths Notes hub.
Use this page as a setup and practice checklist before timed Paper 1 or Paper 2 work.
Status: SEAB's approved-calculators page is the current source of truth and shows a 5 May 2026 page update; confirm your exact model, operating-system version, and approval window against the downloaded SEAB list before exams.
1 What this page covers (and doesn't)
Scope: SEAB approved calculator models, JC graphing calculator exam-mode setup, daily workflows, and paper-specific tips for A-Level 2026
Not a buying ad; verify with your JC and SEAB's latest circulars before purchase
2 Approved models (confirm yearly)
Every JC graphing calculator must appear on the SEAB approved calculator list before it can be used in national examinations. Check the list each year - models are approved for a fixed window and may not be renewed.
Source: SEAB “Guidelines on the use of electronic calculators in national examinations” via the current approved-calculators page (go.gov.sg/seab-approvedcalculators).
SEAB approved calculators for H1/H2/H3 papers:
Casio FX-9860GII (OS 2.04 or 2.09), approved 2014 to 2027.
TI-84 Plus CE (OS 5.0.1 to 5.8.1), approved 2017 to 2029.
TI-84 Plus CE Python (OS 5.6.1 to 5.8.1), approved 2022 to 2026.
SEAB notes all previously approved models remain usable unless withdrawn; reset and clear memory before every paper.
Stick to one unit for all mocks; only update firmware after your school confirms the OS is still on the approved list.
3 Exam Mode essentials
What Exam Mode does: disables programs/notes; locks settings until exit window. SEAB also bans symbolic algebra/ differentiation/integration features.
How to enter/verify on your model (school-verified steps; demo before prelims).
Battery prep: fresh cells or full charge; carry spare set (if applicable).
Checklist before each major paper
Enter Exam Mode in front of invigilators when required; ensure indicator light/icon is active.
Clear stored variables/lists; reset graphing windows; set angle mode (deg most papers).
Label your calculator with school index sticker; carry spare batteries (if applicable) and an approved scientific backup.
4 Paper-specific strategy (9758 H2 Mathematics)
Paper 1: Pure Mathematics only (10 to 12 questions; includes an at least 12-mark real-world application question)
Paper 2: Section A Pure Mathematics (40 marks) + Section B Probability & Statistics (60 marks; includes an at least 12-mark real-world application question)
GC use: the syllabus expects access to an approved GC (no CAS); unsupported answers are generally allowed unless stated otherwise, but you must show mathematical working when required
Typical tasks that benefit from GC
Graph behaviour: windowing to reveal turning points/asymptotes; verifying monotonic intervals.
Equations/roots: bracketing and numerical solve to justify existence/uniqueness.
Regression: linear, exponential, power fits; interpreting parameters and residuals.
Numerical methods: table of iterates; fixed-point vs Newton comparisons (if allowed by school).
GC output-to-answer checkpoint
A graphing calculator can find a value quickly, but the written answer still needs enough mathematical evidence. Use this routine whenever the calculator supplies a root, intersection, regression result, probability, or graph feature.
GC output
What to write before the number
What to check before finalising
Root or intersection
The equation being solved and the relevant interval or graph feature
The root satisfies the original equation, not a rearranged version with lost restrictions
Turning point or asymptote
The curve, window choice, and whether you need exact or approximate coordinates
The window is not hiding another feature nearby
Normal or binomial probability
The distribution, parameters, and tail or interval used
Lower and upper bounds match the wording of the event
Regression result
The chosen model and what each parameter represents in context
The residual pattern and units support the interpretation
Worked check: If the GC gives an intersection at x=2.31, do not write only x = 2.31. First state the equation being solved, such as f(x)=g(x), then say the graphs intersect once in the interval checked. If the question asks for exact working or proof of uniqueness, the GC value is a check, not the whole argument.
Misconception check: A calculator screen is not a method. Treat it as evidence that must be connected to an equation, interval, distribution, model, or graph feature.
Memory hygiene: clear lists/programs per school policy
Practice circuit (25 to 30 min, twice weekly)
Load a past-paper function; set a sensible graph window (avoid clipping).
Identify turning points/roots; cross-check with hand derivatives where relevant.
Enter two regression types on the same dataset; compare R² and residual patterns.
Snapshot your window settings and interpretations in your notes for future reuse.
6 Common pitfalls (and quick checks)
Degrees vs radians; mode mismatch across subjects
Decimal places vs significant figures; rounding at the final step
Hidden state: stored variables/lists; reset protocols before exams
Quick “pre-paper” 60-second routine
Angle: DEG; Display: fix/normal per school guidance; Exponential format readable.
Lists cleared; Stats diagnostics on (if model permits) for regression checks.
Graph: standard step size; previous functions cleared to avoid confusion.
If Calculator Checks Still Do Not Fix Timing
If the calculator setup is correct but Paper 1 or Paper 2 still feels slow, use our A-Level Maths support guide to decide whether the real gap is graphing-calculator fluency, method selection, or written explanation.
7 GC techniques for H2 Maths exams
Knowing which calculator to buy is only the first step. The gap most students hit in Paper 1 and Paper 2 is not having a model - it is not using it strategically. The five techniques below address the most common knowledge gaps identified in post-exam discussions on KiasuParents and r/SGExams.
Answer-checking by graphical verification
Instead of only computing an answer, graph y = your result alongside y = the original function or expression and confirm they agree where expected - same roots, same turning points, same intersection. This turns the GC into a verification tool, not just an arithmetic shortcut, and catches algebraic slips before you commit to them in your working.
Radian vs degree mode
The wrong angle mode produces a plausible-looking number, not an obvious error - making this one of the costliest silent mistakes in trig and complex number questions. Develop a fixed habit: press MODE at the start of every question that involves sin, cos, tan, or arg, confirm the setting, then proceed. The A-Level convention is radians unless the question explicitly states degrees, so default to RAD and switch only when instructed.
For Normal Distribution and Hypothesis Testing questions in Paper 2 Section B, the GC's built-in distribution functions are the expected computation route - SEAB papers are set assuming you will use them. Practise entering the correct bounds and parameters until the keystrokes are automatic; errors here usually come from mis-specifying the lower or upper tail rather than from algebraic mistakes.
Equation solver / POLY for root verification
Use the equation solver (or the POLY function on TI-84 models) to verify roots of polynomial equations after you have obtained them algebraically. This is particularly useful in Vectors (checking whether two lines actually intersect by confirming the solution satisfies all three component equations) and in Complex Numbers (confirming factors of a cubic or quartic).
Table function for sequences and series
When a question involves a recurrence relation or asks you to identify the behaviour of a sequence, generate a table of values and read off the pattern directly. This is faster than working several terms by hand and lets you spot convergence, divergence, or periodicity before committing to an algebraic approach - saving time on questions where the pattern is the entry point to the full solution.
Practice Quiz
Validate your calculator policy knowledge, keystroke workflows, and exam-mode routines.
