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Timed constructed-response mock · controlled beta

Lower secondary foundations complete timed mock assessment — Indonesia

180 minutes · 120 marks. Every task requires method, evidence, calculation or interpretation, challenge and a reasoned conclusion—answers cannot be guessed from short options.

Some tasks use shared beta scenarios and still need subject-specific authoring and academic review.

Task 1: English language

10 marks

A school, community or employer must make a decision involving english language, but the information provided is incomplete and two stakeholders disagree about the strongest conclusion.

Evidence supplied

  • Source A provides a dated quantitative claim but does not explain its sampling method.
  • Source B provides a detailed professional account but may reflect one organisation’s interests.
  • A new constraint changes one cost, risk or assumption by 10 percent.

Write a reasoned response that selects and applies an appropriate method, uses the evidence precisely, addresses the strongest alternative and reaches a conditional recommendation.

Challenge: State what additional evidence could overturn your conclusion and how you would verify it.

Marking criteria and answer guide
  • Method is relevant and explained
  • Evidence is interpreted rather than copied
  • Calculations, terminology or citations are accurate
  • Alternative and uncertainty are addressed
  • Conclusion follows from the analysis
  1. Define the decision and constraints
  2. Evaluate the reliability and relevance of each source
  3. Apply the discipline-specific method step by step
  4. Compare at least two defensible interpretations
  5. Give a checked conclusion with limitations and next evidence

Task 2: Mathematics

10 marks

A school art group mixes two colours of paint in the ratio 2:7. It plans a 180 L batch, then estimates that 15% of the mixture will be lost during transfer. The ratio applies to the mixture before and after transfer only if both colours are lost in the same proportion.

Evidence supplied

  • Colour A : colour B = 2 : 7; planned batch = 180 L.
  • Transfer loss = 15% of the whole batch. Assume both colours are lost uniformly.
  • A learner claims that subtracting 15 L gives the usable volume and that 2/7 of it is colour A.

Calculate the original volume of each colour, the usable total volume and the usable volume of each colour. Show the ratio-unit and percentage steps with units, and check that both pairs of volumes add to their respective totals.

Challenge: Explain both errors in the learner's claim and what would change if the two colours were lost at different rates.

Marking criteria and answer guide
  • 2 marks: nine ratio parts and 20 L per part
  • 2 marks: original volumes 40 L and 140 L
  • 2 marks: 15% loss is 27 L; usable total 153 L
  • 2 marks: usable volumes 34 L and 119 L, with additive checks
  • 2 marks: explains percentage-versus-fixed loss, part-to-part versus part-to-whole ratio, and the uniform-loss assumption
  1. Total ratio parts = 2 + 7 = 9; each part is 180 ÷ 9 = 20 L.
  2. Before transfer: A = 2 × 20 = 40 L and B = 7 × 20 = 140 L; check 40 + 140 = 180 L.
  3. Loss = 0.15 × 180 = 27 L, so usable volume = 180 − 27 = 153 L.
  4. Uniform loss leaves 85% of each colour: A = 0.85 × 40 = 34 L, B = 0.85 × 140 = 119 L; check 34 + 119 = 153 L.
  5. 15% of 180 is 27 L, not 15 L. A is 2/9 of the whole, not 2/7; 2/7 compares A with B. Unequal losses would change the usable ratio.

Task 3: Integrated science

10 marks

A school, community or employer must make a decision involving integrated science, but the information provided is incomplete and two stakeholders disagree about the strongest conclusion.

Evidence supplied

  • Source A provides a dated quantitative claim but does not explain its sampling method.
  • Source B provides a detailed professional account but may reflect one organisation’s interests.
  • A new constraint changes one cost, risk or assumption by 16 percent.

Write a reasoned response that selects and applies an appropriate method, uses the evidence precisely, addresses the strongest alternative and reaches a conditional recommendation.

Challenge: State what additional evidence could overturn your conclusion and how you would verify it.

Marking criteria and answer guide
  • Method is relevant and explained
  • Evidence is interpreted rather than copied
  • Calculations, terminology or citations are accurate
  • Alternative and uncertainty are addressed
  • Conclusion follows from the analysis
  1. Define the decision and constraints
  2. Evaluate the reliability and relevance of each source
  3. Apply the discipline-specific method step by step
  4. Compare at least two defensible interpretations
  5. Give a checked conclusion with limitations and next evidence

Task 4: Physics foundations

10 marks

A school, community or employer must make a decision involving physics foundations, but the information provided is incomplete and two stakeholders disagree about the strongest conclusion.

Evidence supplied

  • Source A provides a dated quantitative claim but does not explain its sampling method.
  • Source B provides a detailed professional account but may reflect one organisation’s interests.
  • A new constraint changes one cost, risk or assumption by 19 percent.

Write a reasoned response that selects and applies an appropriate method, uses the evidence precisely, addresses the strongest alternative and reaches a conditional recommendation.

Challenge: State what additional evidence could overturn your conclusion and how you would verify it.

Marking criteria and answer guide
  • Method is relevant and explained
  • Evidence is interpreted rather than copied
  • Calculations, terminology or citations are accurate
  • Alternative and uncertainty are addressed
  • Conclusion follows from the analysis
  1. Define the decision and constraints
  2. Evaluate the reliability and relevance of each source
  3. Apply the discipline-specific method step by step
  4. Compare at least two defensible interpretations
  5. Give a checked conclusion with limitations and next evidence

Task 5: Chemistry foundations

10 marks

A school, community or employer must make a decision involving chemistry foundations, but the information provided is incomplete and two stakeholders disagree about the strongest conclusion.

Evidence supplied

  • Source A provides a dated quantitative claim but does not explain its sampling method.
  • Source B provides a detailed professional account but may reflect one organisation’s interests.
  • A new constraint changes one cost, risk or assumption by 22 percent.

Write a reasoned response that selects and applies an appropriate method, uses the evidence precisely, addresses the strongest alternative and reaches a conditional recommendation.

Challenge: State what additional evidence could overturn your conclusion and how you would verify it.

Marking criteria and answer guide
  • Method is relevant and explained
  • Evidence is interpreted rather than copied
  • Calculations, terminology or citations are accurate
  • Alternative and uncertainty are addressed
  • Conclusion follows from the analysis
  1. Define the decision and constraints
  2. Evaluate the reliability and relevance of each source
  3. Apply the discipline-specific method step by step
  4. Compare at least two defensible interpretations
  5. Give a checked conclusion with limitations and next evidence

Task 6: Biology and health

10 marks

A school, community or employer must make a decision involving biology and health, but the information provided is incomplete and two stakeholders disagree about the strongest conclusion.

Evidence supplied

  • Source A provides a dated quantitative claim but does not explain its sampling method.
  • Source B provides a detailed professional account but may reflect one organisation’s interests.
  • A new constraint changes one cost, risk or assumption by 25 percent.

Write a reasoned response that selects and applies an appropriate method, uses the evidence precisely, addresses the strongest alternative and reaches a conditional recommendation.

Challenge: State what additional evidence could overturn your conclusion and how you would verify it.

Marking criteria and answer guide
  • Method is relevant and explained
  • Evidence is interpreted rather than copied
  • Calculations, terminology or citations are accurate
  • Alternative and uncertainty are addressed
  • Conclusion follows from the analysis
  1. Define the decision and constraints
  2. Evaluate the reliability and relevance of each source
  3. Apply the discipline-specific method step by step
  4. Compare at least two defensible interpretations
  5. Give a checked conclusion with limitations and next evidence

Task 7: History

10 marks

A school, community or employer must make a decision involving history, but the information provided is incomplete and two stakeholders disagree about the strongest conclusion.

Evidence supplied

  • Source A provides a dated quantitative claim but does not explain its sampling method.
  • Source B provides a detailed professional account but may reflect one organisation’s interests.
  • A new constraint changes one cost, risk or assumption by 28 percent.

Write a reasoned response that selects and applies an appropriate method, uses the evidence precisely, addresses the strongest alternative and reaches a conditional recommendation.

Challenge: State what additional evidence could overturn your conclusion and how you would verify it.

Marking criteria and answer guide
  • Method is relevant and explained
  • Evidence is interpreted rather than copied
  • Calculations, terminology or citations are accurate
  • Alternative and uncertainty are addressed
  • Conclusion follows from the analysis
  1. Define the decision and constraints
  2. Evaluate the reliability and relevance of each source
  3. Apply the discipline-specific method step by step
  4. Compare at least two defensible interpretations
  5. Give a checked conclusion with limitations and next evidence

Task 8: Geography

10 marks

A school, community or employer must make a decision involving geography, but the information provided is incomplete and two stakeholders disagree about the strongest conclusion.

Evidence supplied

  • Source A provides a dated quantitative claim but does not explain its sampling method.
  • Source B provides a detailed professional account but may reflect one organisation’s interests.
  • A new constraint changes one cost, risk or assumption by 31 percent.

Write a reasoned response that selects and applies an appropriate method, uses the evidence precisely, addresses the strongest alternative and reaches a conditional recommendation.

Challenge: State what additional evidence could overturn your conclusion and how you would verify it.

Marking criteria and answer guide
  • Method is relevant and explained
  • Evidence is interpreted rather than copied
  • Calculations, terminology or citations are accurate
  • Alternative and uncertainty are addressed
  • Conclusion follows from the analysis
  1. Define the decision and constraints
  2. Evaluate the reliability and relevance of each source
  3. Apply the discipline-specific method step by step
  4. Compare at least two defensible interpretations
  5. Give a checked conclusion with limitations and next evidence

Task 9: Civic education

10 marks

A school, community or employer must make a decision involving civic education, but the information provided is incomplete and two stakeholders disagree about the strongest conclusion.

Evidence supplied

  • Source A provides a dated quantitative claim but does not explain its sampling method.
  • Source B provides a detailed professional account but may reflect one organisation’s interests.
  • A new constraint changes one cost, risk or assumption by 34 percent.

Write a reasoned response that selects and applies an appropriate method, uses the evidence precisely, addresses the strongest alternative and reaches a conditional recommendation.

Challenge: State what additional evidence could overturn your conclusion and how you would verify it.

Marking criteria and answer guide
  • Method is relevant and explained
  • Evidence is interpreted rather than copied
  • Calculations, terminology or citations are accurate
  • Alternative and uncertainty are addressed
  • Conclusion follows from the analysis
  1. Define the decision and constraints
  2. Evaluate the reliability and relevance of each source
  3. Apply the discipline-specific method step by step
  4. Compare at least two defensible interpretations
  5. Give a checked conclusion with limitations and next evidence

Task 10: Digital literacy

10 marks

A school, community or employer must make a decision involving digital literacy, but the information provided is incomplete and two stakeholders disagree about the strongest conclusion.

Evidence supplied

  • Source A provides a dated quantitative claim but does not explain its sampling method.
  • Source B provides a detailed professional account but may reflect one organisation’s interests.
  • A new constraint changes one cost, risk or assumption by 37 percent.

Write a reasoned response that selects and applies an appropriate method, uses the evidence precisely, addresses the strongest alternative and reaches a conditional recommendation.

Challenge: State what additional evidence could overturn your conclusion and how you would verify it.

Marking criteria and answer guide
  • Method is relevant and explained
  • Evidence is interpreted rather than copied
  • Calculations, terminology or citations are accurate
  • Alternative and uncertainty are addressed
  • Conclusion follows from the analysis
  1. Define the decision and constraints
  2. Evaluate the reliability and relevance of each source
  3. Apply the discipline-specific method step by step
  4. Compare at least two defensible interpretations
  5. Give a checked conclusion with limitations and next evidence

Task 11: Creative arts

10 marks

A school, community or employer must make a decision involving creative arts, but the information provided is incomplete and two stakeholders disagree about the strongest conclusion.

Evidence supplied

  • Source A provides a dated quantitative claim but does not explain its sampling method.
  • Source B provides a detailed professional account but may reflect one organisation’s interests.
  • A new constraint changes one cost, risk or assumption by 40 percent.

Write a reasoned response that selects and applies an appropriate method, uses the evidence precisely, addresses the strongest alternative and reaches a conditional recommendation.

Challenge: State what additional evidence could overturn your conclusion and how you would verify it.

Marking criteria and answer guide
  • Method is relevant and explained
  • Evidence is interpreted rather than copied
  • Calculations, terminology or citations are accurate
  • Alternative and uncertainty are addressed
  • Conclusion follows from the analysis
  1. Define the decision and constraints
  2. Evaluate the reliability and relevance of each source
  3. Apply the discipline-specific method step by step
  4. Compare at least two defensible interpretations
  5. Give a checked conclusion with limitations and next evidence

Task 12: Physical education and wellbeing

10 marks

A school, community or employer must make a decision involving physical education and wellbeing, but the information provided is incomplete and two stakeholders disagree about the strongest conclusion.

Evidence supplied

  • Source A provides a dated quantitative claim but does not explain its sampling method.
  • Source B provides a detailed professional account but may reflect one organisation’s interests.
  • A new constraint changes one cost, risk or assumption by 43 percent.

Write a reasoned response that selects and applies an appropriate method, uses the evidence precisely, addresses the strongest alternative and reaches a conditional recommendation.

Challenge: State what additional evidence could overturn your conclusion and how you would verify it.

Marking criteria and answer guide
  • Method is relevant and explained
  • Evidence is interpreted rather than copied
  • Calculations, terminology or citations are accurate
  • Alternative and uncertainty are addressed
  • Conclusion follows from the analysis
  1. Define the decision and constraints
  2. Evaluate the reliability and relevance of each source
  3. Apply the discipline-specific method step by step
  4. Compare at least two defensible interpretations
  5. Give a checked conclusion with limitations and next evidence