PUC-Rio Vestibular common mistakes
PUC-Rio Vestibular · Understand the traps and how to avoid them.
Treating the essay (redação) as a free-form opinion piece and never explicitly stating and defending a thesis in the introduction.
Candidates carry over habits from school writing where narration or vague reflection is rewarded, and they misread the PUC-Rio proposal that usually asks for a discursive-argumentative text with a defined point of view.
What to do instead
Before writing, draft a one-sentence thesis and an outline of two or three arguments; open the introduction with the thesis, start each body paragraph with a topic sentence tied to it, and check at the end that every paragraph advances that same thesis.
Ignoring the proposed textual genre or the motivating texts and producing a text in the wrong register (for example a narrative or a personal letter when an argumentative essay was requested).
Under time pressure candidates skim the command and reuse a memorized essay model instead of adapting to the specific proposal and its supporting texts.
What to do instead
Read the command twice and underline the genre, audience, and purpose verbs; before writing, note in one line what genre and register are required, and verify at revision that the text matches them.
Losing points on the essay for inadequate cohesion, using loose paragraph breaks and few or misused connectives.
Candidates write in a single flow without planning transitions, and they rely on a small set of connectives whose logical value they do not control.
What to do instead
Build a short list of connectives by function (addition, contrast, cause, conclusion) and practice inserting one at the start of each body paragraph and before the conclusion; during revision, check that each paragraph links logically to the previous one.
In the multiple-choice sections, answering from memory of a familiar topic instead of reading the full stem and all alternatives, including the qualifying words such as 'exceto' and 'incorreto'.
Time pressure and anxiety push candidates toward the first plausible option, and negative or restrictive commands are easy to miss when skimming.
What to do instead
Adopt a fixed routine: circle the command word, restate the question in your own words, predict the answer before reading the options, then eliminate alternatives explicitly; leave nothing blank but mark doubtful items for a second pass.
Treating interdisciplinary questions as pure recall and failing to connect data, graphs, or short texts to the concept being tested.
The general-knowledge section mixes disciplines and often presents information in tables, charts, or excerpts, but candidates trained on isolated facts do not practice extracting the relevant variable or claim.
What to do instead
Practice a fixed reading sequence for any stimulus: identify axes, units, and the stated conclusion, then ask which school concept explains it; do two or three such exercises per study session across different subjects.
Mismanaging time across the objective test and the essay, arriving at the writing stage with too little time or rushing the last questions.
Candidates do not rehearse under timed conditions and underestimate how long careful reading of long stems takes.
What to do instead
Simulate the full exam with a clock, set intermediate checkpoints (for example, finish the first half of the objective items by a set time), and reserve a fixed block for planning, writing, and revising the essay.
Preparing only for the general objective test and neglecting the specific component required by the chosen undergraduate course.
Candidates assume the general section carries all the weight or do not check which specific knowledge their course requires, so they underprepare for the subject that discriminates most.
What to do instead
Confirm the specific component and its syllabus for the intended course early, allocate a fixed weekly share of study time to it, and practice past-format questions in that subject rather than only general revision.
In the course-specific component, applying formulas or procedures mechanically without checking units, significant figures, or the physical meaning of the result.
Drilling leads to pattern matching, and candidates skip the dimensional and plausibility check when they recognize a familiar problem type.
What to do instead
End every calculation by writing the unit of the answer and asking whether the magnitude is plausible; practice problems that deliberately mix units or require an estimate to build the checking habit.
Answering course-specific discursive or open questions with a single result or keyword, omitting the reasoning steps the correction expects.
Candidates transfer the objective-test habit of selecting an answer and do not realize that partial credit depends on showing the argument or calculation path.
What to do instead
Structure each open answer as claim, justification, and conclusion (or given, reasoning, result), and practice writing full solutions under time, checking against the expected reasoning rather than only the final value.
Misreading the vocabulary and structure of course-specific texts or statements in the target area, missing technical terms that change the meaning of the question.
Candidates study content but not the specific terminology and phrasing conventions of their area, so a single technical term flips their interpretation.
What to do instead
Keep a glossary of technical terms for the specific subject and reread each stem identifying the key term before answering; practice paraphrasing stems aloud to confirm the intended meaning.