Angola Naval Academy Entrance Exam common mistakes
Angola Naval Academy Entrance Exam · Understand the traps and how to avoid them.
When simplifying algebraic fractions or solving equations, the candidate cancels a term that is added rather than multiplied, e.g. writing (x+3)/x = 3.
The candidate treats addition inside a numerator as if it were a factor, because the cancellation rule for products was memorised without understanding that it only applies to factors.
What to do instead
Before cancelling, force the candidate to factor the numerator and denominator completely and write the expression as a product; drill 20 mixed items where some numerators factor and some do not, and require a written justification for each cancellation.
The candidate computes a percentage increase and a percentage decrease of the same value as cancelling out (e.g. +20% then -20% treated as no change).
The candidate applies additive intuition to a multiplicative operation and takes the second percentage of the original value instead of the new base.
What to do instead
Require the candidate to write the multiplier chain explicitly (1.20 x 0.80 = 0.96) for every percentage problem, and practise 10 real-context items (prices, fuel, salaries) where the base changes.
In geometry and trigonometry, the candidate substitutes lengths into sine, cosine or tangent without checking whether the triangle is right-angled or which angle is the reference.
Formulas are recalled as strings without the associated diagram conditions, usually because practice was formula-drilling rather than diagram-based.
What to do instead
Make the candidate redraw and label every triangle before choosing a ratio, state the reference angle in words, and solve a set mixing right and non-right triangles so the precondition is consciously checked.
The candidate writes a composition using colloquial spoken forms and phonetic spellings (e.g. 'agente' for 'a gente', 'mais' for 'mas', missing accents) and misplaces enclitic pronouns.
The candidate transcribes speech directly, having had little feedback on the gap between oral Angolan Portuguese and the written standard, and pronoun placement rules were learned as isolated rules.
What to do instead
Weekly 15-minute dictation plus self-correction against a checklist of the ten most frequent confusions (mais/mas, há/a, porque/porquê/por que); require rewriting three sentences moving pronouns between proclitic, enclitic and mesoclitic positions.
On literature questions, the candidate retells the plot of a set work but cannot identify the movement, the author's context, or the function of a literary device when asked.
The candidate studied summaries rather than the text itself, so knowledge is at the level of events, not analysis or periodisation.
What to do instead
Replace plot summary with a structured annotation sheet per work: movement and dates, three themes with textual evidence, three devices with quoted lines and their effect; practise short answer questions that demand a quotation as proof.
The candidate solves kinematics or dynamics problems using numbers in mixed units (km/h with seconds, grams with newtons) without converting, and omits the direction of vector quantities.
Arithmetic is done first and units are attached afterwards as decoration, and vectors were learned as magnitudes only.
What to do instead
Enforce a written 'given/required/units' block before any calculation, mark answers wrong when units are missing or inconsistent, and require free-body or motion diagrams with arrows and labelled directions on every problem.
The candidate writes a balanced chemical equation by adjusting subscripts in formulas rather than coefficients, or ignores state symbols and reaction conditions.
The candidate confuses the formula of a substance with the count of particles, a sign that balancing was practised as symbol-matching rather than as conservation of atoms.
What to do instead
Require an atom-count table under each equation before and after balancing, forbid altering subscripts explicitly, and include items where a state symbol or condition (heat, catalyst) is part of the required answer.
The candidate answers biology questions about cells, genetics or ecosystems by recalling a label from a diagram but cannot explain the function or predict the outcome of a change.
Revision relied on labelling diagrams and memorising definitions, so knowledge stays at recognition level and collapses when the question asks for a mechanism.
What to do instead
Convert each labelled structure into a 'what happens if' question (e.g. remove structure X, block process Y) and require a two-sentence causal chain; practise interpreting genetic crosses and food webs rather than naming their parts.
The candidate gives dates and events in history without cause and consequence, and describes maps in geography without using scale, coordinates or the map key.
History was studied as a timeline to be memorised and geography as place-name recall, so the analytical operations of each discipline were never practised.
What to do instead
For each topic, require a three-column table (cause, event, consequence) and answer one 'why' and one 'how significant' question; in geography, insist on scale calculations and grid references before any description of a map.
The candidate answers civic and military education items with general opinion or everyday vocabulary instead of the precise institutional term (e.g. describing chain of command, hierarchy, duty or national symbols loosely).
The candidate has absorbed these topics informally from daily life and media, and has not learned the formal terminology or the normative documents behind the concepts.
What to do instead
Build a glossary of institutional terms with one-line definitions and require exact terms in answers; practise scenario questions on hierarchy, discipline and duties where the candidate must justify the answer with the applicable rule, not personal opinion.
In English, the candidate translates word for word from Portuguese, producing errors such as 'I have 20 years', 'explain me' or wrong tense choice, and misreads instructions given in English.
The candidate processes English through Portuguese syntax and has practised recognition exercises more than production, so interference from the first language is never corrected.
What to do instead
Contrastive drills on the ten highest-frequency Portuguese-to-English transfer errors, plus paraphrasing tasks where the candidate restates each exam instruction in their own words before answering.