UnaGPT · Secondary

Business

Precisely analyses the accuracy of economic concepts and terminology, assesses Tourism & Hospitality industry knowledge and use of data, and supports marking of handwritten BAFS accounting answers.

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Economics

Precise analysis and marking of concepts and terminology

AI delivers specific feedback on students' application of core concepts, precision of terminology, depth of economic explanation, and each marking criterion, helping students consolidate their knowledge of Economics, sharpen their analytical skills, and learn to argue using rigorous economic language.

Application of conceptsTerminology precisionDepth of explanation
StudentEconomics · GDP／GNI
Question (7 marks)
Ms Lo, a Hong Kong physiotherapist, was hired by a rehabilitation centre in Australia in March 2023. She returned to Hong Kong eight months later. (a) Explain whether her salary would be included in Hong Kong's (i) GDP (ii) GNI. (b) Recommend AUD or USD for her salary.
Answer · Submission #1
(a)(i) It would not be included in GDP of Hong Kong; the rehabilitation centre in Australia is not a resident producing unit of Hong Kong…
Correctness of Inclusion in Hong Kong GDP
The answer correctly states the salary would not be included in Hong Kong's GDP, satisfying the 'no' response.
1
Explanation of Reason
The answer reasons that the Australian rehabilitation centre is not a resident producing unit of Hong Kong, matching the required explanation and using the necessary terminology.
1
Economics

Diagram-based answers — supply and demand curves NEW

Even for chart-based answers such as supply-and-demand curves, AI reads them accurately, checking whether the axes, post-tax supply curve, and equilibrium point are correctly labelled, then awarding marks point by point against the marking criteria to help students master graphical analysis.

Supply and demand curvesTax analysisEquilibrium point
Student's graphical answerEconomics · Supply & demand curve
Question · Question 1 [8 marks]
The government imposes a specific (per-unit) tax of $2 on good X. (a) Using a demand-and-supply diagram, show the effect of the tax on equilibrium price and quantity. (4) (b) Indicate the price paid by consumers (Pc) and received by producers (Pp). (2) (c) Explain how the tax burden is shared. (2)
Student's Answer
經濟 · 供求曲線圖
AI Result
Part (a) Demand-and-supply diagram
Axes, downward-sloping demand and upward-sloping supply are shown. The supply curve is shifted upward/leftward to a parallel taxed supply curve, and the new equilibrium quantity is shown as lower than the original quantity.
4
Paragraph Analysis · Part (a): A diagram with Price on the vertical axis and Quantity on the horizontal axis, showing D, S, a higher parallel supply curve after tax, original and new quantities, and labelled prices including Pc, P0 and Pp.
The organisation is mostly clear and directly addresses the diagram requirement. The main strength is that the tax is shown through an upward shift of supply and a fall in equilibrium quantity. A weakness is that the labelling is crowded, making the original and new equilibria less easy to distinguish. A stronger version would label the intersections explicitly as original equilibrium and new equilibrium, and mark the vertical distance between Pc and Pp with "$2" beside a bracket or double-headed arrow.
Economics

Graph-based answers — production possibility frontier NEW

Even for chart-based answers like the PPF, AI reads them accurately, checking whether the curve shape, axis labels and key point positions are correct, then awards marks item by item against the marking criteria to help students grasp the concept of opportunity cost.

Production possibility curveOpportunity costCurve labelling
Student's graphical answerEconomics · Production possibility frontier
Question · Question 3 [5 marks]
(a) Draw a production possibility frontier (PPF) for an economy that produces capital goods and consumer goods. (2) (b) Use the PPF to explain the opportunity cost of producing more capital goods. (2) (c) Mark a point that represents underemployment of resources. (1)
Student's Answer
經濟 · 生產可能性界限
AI Result
(a) PPF diagram
A PPF curve that bends inwards towards the origin has been drawn and it meets both axes; the vertical axis is labelledcapital goods, and the horizontal axis is labelledconsumer goods, which meets the requirement.
2
Paragraph Analysis · The diagram shows a PPF curve, with capital goods on the vertical axis and consumer goods on the horizontal axis; A and B are marked on the curve, and C lies inside it.
The content is complete: it covers part (a) and provides a diagram that supports (b) and (c). The work is clearly organised, and the key points A, B and C are clearly placed. To improve, write the two axis labels closer to the ends of the axes, and mark the direction of the move from A to B more clearly on the diagram — for example, add an arrow and label it “more capital goods, fewer consumer goods” — so that your explanation in (b) links more directly to the diagram.
Tourism & Hospitality

Data response — assessing industry knowledge and use of data

Accurately analyses students' grasp of industry knowledge, service scenarios and social issues, giving concrete feedback on data use and argumentation, and even marks chart- and data-based answers to help students strengthen application skills and critical thinking.

Industry knowledgeData useCritical thinking
StudentTourism · Role of government
Question (8 marks)
In recent years many tourists have gone to Hong Kong's countryside to experience its natural ecology, and this has raised concerns. (a) Explain four negative socio-cultural impacts that a large influx of tourists brings to the local community, and suggest one mitigation measure for each impact.
Answer · Submission #1
A large influx of tourists into the countryside affects residents' daily lives. First, the way tourists behave causes a nuisance and destroys the peace and quiet of the community. Second, outside cultures cause traditional customs to lose their character, and even⋯
Accurate identification of socio-cultural impacts
The candidate correctly points out negative impacts such as noise nuisance and the erosion of local customs, and the explanation is reasonable; the discussion is, however, a little lacking in depth and does not cover other social problems. A satisfactory performance.
3
Suggesting targeted mitigation measures
Reasonable mitigation measures are suggested for each impact, such as stepping up patrols or public education, and the general direction is right; however, some measures lack concrete details on how they would be carried out, so their effectiveness may be limited.
2
Structure of argument and clarity of expression
The answer takes a clear stand and makes an attempt to answer point by point, so it is reasonably well organised; however, some sentences are rather vague in meaning, and subject-specific vocabulary is not used precisely enough.
1
BAFS

Bank account — closing balance with step-by-step verification NEW

AI reads handwritten T-accounts, checks each entry against the marking scheme, flags posting and closing errors, and gives specific corrections.

Journal-entry calculationClosing balance
Student's graphical answerBAFS · Bank account
Question · [5 marks]
Wong Trading's cash at bank for May: balance b/f (Dr) $18,400; received from receivables (banked) $52,000; paid to payables by cheque $39,500; bank charges $300; rent by standing order $6,000. Write up and balance off the cash at bank account for May.
Student's Answer
BAFS · 銀行存款賬
AI Result
Trade receivables 5,200
The amount received from trade receivables stated in the question is $52,000. An extra zero was missed, which leads to an incorrect total for the debit side.
Balance b/d (22,200)
Totals: 23,600 on both sides
Balancing off was not done correctly. The totals of both sides should equal the larger sum — here the credit side ($45,800) exceeds the debit side ($23,600). The balancing figure should be added to the smaller (debit) side, labelled 'Balance c/d' at month-end (not 'Balance b/d'), then brought down on the credit side as 'Balance b/d' next month.
BAFS

Accumulated depreciation account — depreciation calculation with carry-forward across years NEW

Marks accounting journal entries and depreciation calculations against the rubric item by item, flags errors in date formats and carry-forwards, and supports T-account answers spanning consecutive years.

Depreciation calculationsDate format
Student's graphical answerBAFS · Accumulated depreciation account
Question · Question 3 · [4 marks]
A machine was bought on 1 January 2023 for $200,000 and is depreciated by the straight-line method at 20% of cost per year. Prepare the “Accumulated Depreciation — Machinery” account for 2023 and 2024.
Student's Answer
BAFS · 累計折舊賬
AI Result
Depreciation for 2023
The credit side of the account has a “Depreciation 40,000” entry, and the amount is correctly calculated.
0.5
Balance c/d for 2023
The debit side of the account has a “Balance c/d 40,000” entry, and it is correctly balanced off.
0.5
Balance b/d for 2024
The credit side of the account has a “Balance b/d 40,000” entry, correctly carried forward from 2023.
0.5
Depreciation for 2024
The credit side of the account has a “Depreciation 40,000” entry.
0.5
Balance c/d for 2024
The debit side of the account has a “Balance c/d 80,000” entry, and the accumulated amount is correctly calculated.
0.5
Balance b/d at the start of 2025
The entry carrying the closing balance for 2024 forward to the next period is missing (that is, the balance b/d on 1 January 2025 80,000）。
0
Date
All the entries give only the year; the specific month and day are missing, so they do not meet the date requirements for accounting entries.
0
New for 2026 NEW

Una Question Bank · Business: full coverage of the S1–S6 curriculum

Business, from S1 to S6, is built from the knowledge structure —— preparing, setting and reviewing every assessment point one by one; each question comes with marking criteria and sample answers, and can be exported to the UnaGPT AI self-study system for automatic marking in one click.

  • S1–S6 Business:11,652 questions · 522 assessment points
  • Bilingual Chinese-English display — switch interface and questions with one click
  • Draft → Review → Publish, with a teacher-review workflow standing guard
  • Diverse question types: multiple-choice／short-answer／structured／data-response／writing／image-based answers
Coverage
S1–S6
ChineseEnglishMathematicsArtsSciencesBusinessOther
Business · 知識點樹
① Knowledge-point tree —— Business: Subject → Strand → Topic → Assessment point
Economics 試題範例
② Economics questions —— Measuring income inequality: Lorenz curve & Gini coefficient With images
Tourism & Hospitality 試題範例
③ Tourism and Hospitality questions —— Interpreting tourism statistics With images
企會財 試題範例
④ Business, Accounting and Financial Studies questions —— E-marketing and customer relationship management
Teacher and student testimonials

Genuine feedback from schools, teachers, and students

To gauge students' initial understanding of a topic, I set up basic questions on the platform before class for them to attempt, and adjust my teaching pace based on how they answer. By comparison, traditional e-learning tools can only create MC questions, and after students answer, the system merely shows whether they got it right or wrong, with no detailed explanation at all. This means students with questions have to spend time seeking answers from the teacher. UnaGPT, on the other hand, can instantly provide a range of explanations for students' mistakes based on their answers, and can even address conceptual questions. Traditional e-learning tools simply cannot match this depth of support.

Tang Ho-pan
Tang Ho-panEconomics Teacher · S.K.H. Lam Kau Mow Secondary School
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