In AI, your graphic display calculator (GDC) isn't a backup tool — it's central to how the course is assessed. Students who lose time in AI exams are rarely stuck on the math itself; they're stuck fumbling through calculator menus they don't use often enough to navigate quickly. A few hours spent getting fluent with your specific model pays off more than almost any other single revision activity for this course.
Know your exact model, not just "a GDC"
The two most common families are Texas Instruments (TI-84 Plus CE, TI-Nspire) and Casio (fx-CG50 and similar). Menu structures, button layouts, and even terminology differ meaningfully between them — a study guide written for a Casio won't map directly onto a TI. Make sure whatever practice materials or tutorials you're using match your actual calculator model.
Check your exam board's approved calculator list and make sure your specific model and firmware are permitted — some older or newer models can be restricted. Also confirm the memory is cleared of any stored programs or notes that aren't allowed, since this is checked and can cause serious problems if missed.
Statistics functions you should know cold
- 1-variable and 2-variable statistics — mean, standard deviation, and (for 2-variable) correlation coefficient and regression line, directly from a data list without manual calculation
- Normal distribution functions — finding probabilities and inverse normal (finding a value given a probability) without needing z-tables
- Chi-squared and other built-in hypothesis tests — your GDC can compute test statistics and p-values directly from a table of data, which is expected rather than optional
- Solving systems of equations and finding roots numerically — essential for questions that aren't designed to have clean algebraic solutions
Common time-wasters to eliminate before exam day
- Manually entering data you could import or reuse. If a question reuses the same data set across multiple parts, learn to store and recall lists rather than retyping them.
- Searching for menu items during the exam. If you have to think about which menu a function lives in, that's a sign it needs more practice before exam day — not something to work out live under time pressure.
- Rounding too early. Carrying rounded intermediate values through a multi-step calculation is a common way to lose accuracy marks — store exact values in your calculator's memory and round only the final answer, as instructed.
- Not double-checking graph window settings. A poorly scaled graphing window can make you think there's no solution, or miss one entirely — get comfortable adjusting window settings quickly when a default view doesn't show what you need.
A simple way to build fluency
Rather than a separate "calculator practice" session, do every AI practice question with your actual exam calculator, timed, exactly as you would in the real exam. The goal is for the physical sequence of button presses to become automatic, so your mental effort during the real exam goes entirely into the math, not the tool.
Practise with realistic AI questions
Generate AI SL/HL questions designed for GDC use, with full mark schemes.
✦ Try it freeFrequently asked questions
Can I use any graphic calculator for IB Math AI?
No — only models on your exam board's approved list are permitted. Always check the current list well before exam day, since permitted models can change.
Is a GDC required, or can I use a basic scientific calculator?
AI specifically requires a graphic display calculator with statistical and graphing capabilities — a basic scientific calculator isn't sufficient for the course's technology-dependent content.