Vestibular Seriado UFMG common mistakes
Vestibular Seriado UFMG · Understand the traps and how to avoid them.
On multi-step calculation questions, the candidate substitutes values into the formula first and only then rearranges the algebra, so rounding errors compound and the final numeric option is missed by a small margin.
High-school habits favor immediate substitution because it feels concrete; the candidate has practiced formulas with numbers rather than symbolic manipulation, and under time pressure symbolic rearrangement feels slower and riskier.
What to do instead
Adopt a fixed two-pass routine: pass one isolates the target variable symbolically and simplifies the expression; pass two substitutes values and rounds only at the final step. Practice ten problems per week where the answer must be written as a symbolic expression before any number appears.
The candidate reads the stem once, starts writing, and answers the question they expected rather than the one asked, especially on items with a negation ('except', 'incorrect') or a final command such as 'justify' versus 'calculate'.
Exam time pressure encourages skimming, and the brain completes familiar patterns from previous practice items; the final command line is visually the least salient part of a long stem.
What to do instead
Use a pencil to underline the command verb and circle any negation before reading the alternatives. At the end of the answer, re-read only the underlined command and check the response matches that verb form.
In essay or long-answer items, the candidate writes a general introduction about the theme and never states a thesis or takes a position, so the response is descriptive rather than argumentative.
School writing instruction often rewards contextual opening paragraphs, and the candidate transfers that habit to a genre that scores argumentative structure and explicit stance.
What to do instead
Draft a one-sentence thesis before writing anything else and place it at the end of the first paragraph. Check that every subsequent paragraph contains an explicit link back to that thesis sentence.
The candidate produces a long-answer response that cites no specific data, example, or source, relying entirely on generic statements about society or nature.
Candidates fear citing something wrong, so they retreat to safe generalities; they also have not built a personal repertoire of examples to draw on under pressure.
What to do instead
Build and memorize a small bank of about fifteen concrete examples (historical events, Brazilian legislation, scientific cases, literary works) that can be adapted to several themes, and rehearse inserting at least one into every practice answer.
On interdisciplinary items, the candidate treats the problem as belonging to a single school subject and ignores the data or concept supplied from another area, producing an answer that is internally consistent but does not use the given information.
Study is organized by subject, so the candidate's retrieval cues are subject-specific; unfamiliar combinations trigger a search for the nearest familiar procedure instead of a reading of what the item actually supplies.
What to do instead
Before solving, list every piece of information the stem provides and label each with its area. If any supplied item is unused after solving, return and ask what it constrains. Practice with items that deliberately include one distractor datum and one essential cross-area datum.
The candidate manages time uniformly, spending the same effort on a hard item as an easy one, and reaches the final third of the paper with unread questions.
Candidates rarely rehearse under a clock, so they have no calibrated sense of how long an item should take, and loss aversion makes abandoning a nearly-solved problem feel like waste.
What to do instead
Run at least three full timed simulations before the exam. Set a per-item budget, mark and skip any item exceeding it by half, and reserve the last fifteen minutes for returns. Track which item types actually consume the overrun.
The candidate answers a graph or table item by reading a single point or the overall trend, without checking axis units, scale breaks, or what the axes actually measure.
Visual salience draws attention to the curve shape, and the candidate has practiced extracting values more often than interrogating axis labels and units.
What to do instead
Apply a fixed checklist to every graphic: read both axis titles and units, note the scale, identify what is held constant, then locate the specific point or interval the command asks about. Say the axis units aloud in the written justification.
The candidate memorizes definitions and formulas but cannot apply them to an unfamiliar situation, so items requiring transfer to a new context are left blank or answered with a restated definition.
Revision is dominated by re-reading and highlighting, which builds recognition rather than retrieval and application; the candidate never tests whether the concept works outside the textbook example.
What to do instead
Replace re-reading with closed-book retrieval and application: after each topic, solve two problems set in contexts not used in class, and explain aloud why the concept applies there. Keep an error log of contexts that defeated transfer.
The candidate writes the final answer without units, with mismatched units, or with an unjustified number of significant figures, losing points on items that are otherwise correct.
Attention is consumed by the calculation itself, and unit discipline is rarely enforced in school exercises where the expected unit is obvious from the context.
What to do instead
Carry units through every step of the working and box the final answer with its unit. Before submitting, check that the unit matches what the command requested and that the precision matches the data given in the stem.
The candidate treats the answer sheet as a place to transcribe working, filling it in as they go, then runs out of space or misaligns a later answer with its question number.
Candidates have not practiced the mechanical logistics of the exam, and anxiety about forgetting an answer encourages immediate transcription rather than a controlled final pass.
What to do instead
Rehearse the exact answer-sheet procedure in every simulation: solve in the booklet, mark the chosen alternative in the margin, and transcribe in blocks of ten with a position check. Reserve the last minutes for verifying alignment rather than for new reasoning.