Which Calculators Are Allowed for PSLE and SEC? | SEAB Approval, Old Models and Paper Rules

Start with the calculator already in the pencil case. Read its full model marking and photograph it clearly. A brand name alone is too broad: a familiar-looking calculator can have a different suffix, different functions or a different approval status. Compare the actual marking with the official document, rather than the shop’s headline or a friend’s recommendation.

SEAB’s calculator guidelines and list, updated 9 September 2026, includes current and previously approved scientific models. Previously approved calculators can continue to be used unless SEAB withdraws approval following a policy, syllabus or format change. An approval-period end date therefore does not, by itself, establish that an older model is banned.

Treat the check as a small matching task. Put the device beside the document, locate the precise entry, and save the source and checking date. If a suffix is missing or the marking is unreadable, send that photograph to the school before buying a replacement. This gives the teacher a concrete question to answer.

Contents · Next chapter

There are two separate questions: is the calculator approved, and is it permitted in this paper? Keep both answers on the same note. This is particularly useful when a child moves from PSLE to secondary school and carries familiar paper names into a different assessment system.

For 2026 PSLE Standard Mathematics (0008), calculators are prohibited in Paper 1 and permitted in Paper 2. For 2027 SEC G3 Mathematics (K310), an approved calculator may be used in both papers. That concrete difference is why “Paper 1” is not enough information.

For Foundation Mathematics, G1, G2, Additional Mathematics or a Science paper, open the exact subject document for the examination year. Read its assessment and materials sections. Do the same for each subject in a mixed-level timetable: the child’s Posting Group is not the title of an examination paper.

At Primary 1–4, begin with the task the teacher has set. Mental calculation, written methods and estimating answers remain useful habits. A national-exam approval list is not a command to introduce a particular device in every primary year. At Primary 5–6 and beyond, practise with the equipment the school has confirmed for the relevant work.

Contents · Previous chapter · Next chapter

SEAB’s calculator guidelines require a silent device, clear original brand and model markings, cleared stored information and suitable features. Candidates are responsible for working condition and power; calculators cannot be shared. Formula or instruction material must not enter the venue, and prohibited information printed on a calculator must be securely covered. Graphing calculators are restricted to the specified A-Level subjects, so an A-Level approval entry does not establish PSLE or SEC permission.

Now turn those rules into a practical rehearsal. Check the display, the keys and the battery with ordinary exercises. Follow the manufacturer’s instructions for clearing and setting the device, then check the mode needed for the next task. A parent should avoid experimenting with unfamiliar settings just before the examination.

Ask the student to demonstrate the sequence without someone taking over: switch on, read the display, enter a bracketed calculation, check the result and correct an entry. If the device behaves differently from classroom practice, resolve that difference during normal study time. Familiarity matters because each unexpected menu can interrupt a chain of reasoning.

For any backup arrangement, follow the school’s current instructions and apply the same model and condition checks. Do not assume another student can lend a calculator during the paper. The aim is a reliable personal routine that the child can carry out calmly.

A useful family note has four lines: exact model; source and date checked; permitted papers; preparation instructions confirmed by school. Keep it beside the exam information rather than scattering screenshots through several chat groups.

Contents · Previous chapter · Next chapter

Did you know that a correct display can still answer the wrong question? Here is an original teaching example: a student is asked for the cost of three notebooks at $2.40 each and a $1.50 folder. The calculation is 3 × 2.40 + 1.50 = $8.70. Entering 3 × (2.40 + 1.50) gives $11.70 and describes three folders instead. The calculator has followed the input perfectly; the story has changed.

Ask for a rough expectation before entering the exact calculation. Three notebooks cost a little over $7, and the folder adds about $1.50, so an answer near $9 is sensible. Then ask the student to point to each part of the written expression and explain what it buys. That conversation reveals whether the difficulty is interpretation, arithmetic or device use.

For secondary work, use the same routine with a formula or a negative value: establish the mathematical expression on paper, enter it carefully, inspect the result and interpret it in the question. Practise rounding at the appropriate final stage and keep the required unit visible. Follow the exact paper’s accuracy instructions rather than adopting one rounding rule for all subjects.

In the 2027 K310 syllabus, essential working matters even though calculators are permitted. For the broader learning route, continue with how Maths progresses from Primary 1 to SEC or the existing PSLE calculator strategy article. These explain the learning decisions after the equipment check.

The Clementi Secondary 1 Mathematics tutorials guide describes eduKateSG’s three-student teaching approach. One useful small-group activity is for each student to write an expression independently before comparing explanations. That is a teaching suggestion, not an examination rule or a promise of a particular result.

Contents · Previous chapter · Next chapter

A calculator check belongs at a transition, not only on the final packing evening. Revisit it when the school changes the required model, when the device is replaced, when a subject level changes, or when the examination year’s documents become available. Each trigger changes one part of the question you are answering.

For a child heading towards 2027 SEC, record the actual registered subject and G level before checking the relevant syllabus. The general calculator list inspected for this guide still labels PSLE and GCE examinations. We therefore use the 2027 SEC subject syllabus for the verified K310 paper example and ask families to confirm SEC model acceptance through the school’s current instructions. We do not relabel the 2026 list as a blanket SEC approval certificate.

A concise school question is: “This is the full model on my child’s device. For this examination year and subject code, is it accepted, and what preparation is required?” Attach the model photograph and identify the paper. That is more useful than asking whether a whole brand is allowed.

Keep the next step small. If the device and rules are settled, return to learning. If the tool is unfamiliar, practise a few representative entries. If the child cannot decide what to calculate, repair the mathematical reasoning. An equipment purchase and a learning intervention answer different questions.

Official starting points: SEAB calculators and dictionaries; 2026 PSLE formats; 2027 SEC G3 school-candidate syllabuses.

Contents · Previous chapter · Syllabus finder