CEnT-S Study Guide: How to Prepare

The soundest way to start is not to treat the exam as a list of topics to memorise, but to first get clear on its actual scope and where your own knowledge gaps sit. You can find the current scope and the full breakdown of all five sections on the CEnT-S syllabus page; rather than repeating that list, this page focuses on turning that scope into a study strategy.

According to the research document, the CEnT-S syllabus largely corresponds to the final-year programme of Italian scientific high schools (Liceo Scientifico). The document specifically highlights probability, combinatorics, data/statistics, organic chemistry nomenclature, and thermodynamics and fluid mechanics in physics as areas that candidates coming from curricula that don't emphasise them as heavily may particularly want to review. This doesn't mean every candidate is weak in these areas — they're simply examples the document flags as worth building into a study plan.

The six stages below are an editorial synthesis of the preparation information in the research document — they are not an official CISIA programme.

1. 01

   Get to know the exam structure

   Five sections, 55 questions, 110 minutes; strict per-section time limits, no way back once a section closes, and the +1 / 0 / −0.25 scoring logic. See What Is CEnT-S? for the details.

2. 02

   Identify your syllabus gaps

   Instead of studying every topic blindly from page one, turn the CEnT-S syllabus into a simple checklist: sort topics into ones you know, partly know, and are weak on.

3. 03

   Strengthen your Mathematics and Reasoning foundation

   15 Mathematics and 15 Reasoning questions together make up 30 of the exam's 55 questions. Weaknesses here can meaningfully affect your total score, which is why prioritising them makes sense — more on this below.

4. 04

   Build depth in Biology, Chemistry and Physics

   Work systematically through the remaining three sections; see the subject-by-subject notes below.

5. 05

   Move into section-timed practice

   Pair subject knowledge with question practice paced to each section's own time limit, and get used to a format that doesn't let you go back.

6. 06

   Work through CEnT-S-format mock tests

   Round out your subject study with simulations and mock exams that mirror the real exam's timing and scoring logic.

These stages aren't strictly linear: going back to stages two and three to re-prioritise gaps based on mock results is a normal part of the process.

This section doesn't replace the full topic list on the CEnT-S syllabus page — it offers short, complementary notes on how to approach it.

According to the research document, 30 of CEnT-S's 55 questions — more than half — come from Mathematics (15 questions) and Reasoning on Texts and Data (15 questions) alone. This doesn't mean these two sections are officially weighted more heavily; it simply means that, by question count, they have an outsized effect on your total performance. Weaknesses here can therefore strongly affect your overall score.

Mathematics preparation should focus on mastering the full syllabus rather than memorising isolated tricks. Reasoning preparation should particularly develop:

• Deductive reasoning
• Reading graphs and tables
• Converting verbally-stated problems into mathematical or algebraic expressions
• Interpreting data quickly

Preparation, then, shouldn't be separated from the admission requirements of your target degree programme.

According to the research document, CEnT-S's 110 minutes are not a single pool you can freely allocate yourself. Each section has its own strict time limit, and once a section closes and you move to the next one, you cannot go back to answer skipped questions or check your answers. The familiar "I'll skip this and come back at the end" approach simply doesn't work on CEnT-S.

The document also notes that a candidate who finishes a section before its allotted time runs out can move on to the next section early, but any unused time does not carry over — it is simply forfeited. This structure directly tests a candidate's in-exam decision-making.

This comparison is a conceptual visualisation.

This reality means practice should also simulate section-specific timing, decision-making under time pressure, and moving on from time-consuming questions.

Under this system, mock-test review shouldn't just ask "how many questions did I answer?" It should also look at correct answers, incorrect answers, blanks, and the quality of your decisions. The goal is deliberate risk management, not indiscriminate guessing.

The strategy described in the research document is this: if you can confidently eliminate three of five options and are deciding between the two that remain, taking that calculated risk is discussed as reasonable. Otherwise, leaving a highly uncertain question blank is a safer way to protect against the −0.25 penalty. This is presented as the approach described in the supplied research, not a universal mathematical guarantee.

The cycle below is one editorial way to manage the move from learning a topic to CEnT-S-format mock tests in an orderly way; it's untimed and meant to repeat.

The cycle repeats by returning to the Practice and Analyse stages after a mock.

Mock exams shouldn't just test content recall. The research document points to helping candidates get accustomed to question style, section-specific timing, scoring, moving forward without returning, and decision-making under pressure. The document doesn't suggest an ideal number of mock exams, so we're not proposing one either.

According to the research document, CISIA provides CEnT-S simulations through its Student Area on the official portal, within a "Practice and Training" (PAT) environment. This information is relayed only as it appears in the research document; the CISIA site itself was not visited or independently verified for this task.

According to the document, these simulations are considered useful because they help with:

• Familiarity with the real exam interface
• Familiarity with section-specific timing
• Understanding the question style
• Testing how the scoring approach plays out
• Understanding how distractor options are structured

CEnT-S is a new exam introduced in the Italian higher education system in November 2025. According to the research document, this means there isn't yet an extensive multi-year archive of official CEnT-S past papers the way there is for older exams.

The document notes that older TOLC-I, TOLC-E or TOLC-F questions can have some topic-practice value, but that relying on them alone can be misleading, since CEnT-S's new combined structure, language and timing/question distribution differ from those earlier exams.

The research document doesn't define a universal ideal preparation period for CEnT-S (a specific number of weeks or months, for instance). How intensively you need to prepare depends on your existing knowledge gaps, your target programme, and how you perform in timed practice. We're not proposing a fixed duration here for that reason.