This comprehensive exam-guide package for Pearson Edexcel IGCSE Business (4BS1) provides concrete examiner strategies. It covers the exact 180-minute blueprint, techniques for earning AO2 (Application) and AO3 (Analysis) marks, breakdown of calculation pitfalls, and essay-structuring frameworks for top-tier results.
A scientific or graphical calculator is permitted. Graphical calculators must be in exam mode with all stored programs and data cleared before the exam; the calculator must not be able to retrieve stored text or formulae.
AO1: AO1 - Recall and communicate knowledge and understanding of business terms, concepts and issues (27.5%)
AO2: AO2 - Apply knowledge and understanding of business terms, concepts and issues to a variety of contexts (37.5%)
AO3: AO3 - Analyse issues, making use of business information to show links, connections and consequences (20%)
AO4: AO4 - Evaluate options, make judgments and decisions based on evidence (15%)
過去問と採点基準にもとづいて作成（2023–2025）。
電卓プログラム
Table mode for roots & turning points
Scientific calculator (e.g. Casio fx-991 series)
目的: Tabulate \(y\) across a range of \(x\) to locate sign changes (roots) and approximate maxima/minima.
使う場面: Solving or sketching a function when you want to find where its graph crosses or turns.
手順
Enter the function in TABLE mode, set the start, end and step, then read where the sign of \(y\) changes or where it peaks.
試験での注意: Allowed, but clear stored programs/data (graphical calculators in exam mode) and show the required working — unsupported calculator answers score no method marks.
Statistics mode (mean, SD & regression)
Scientific calculator (e.g. Casio fx-991 series)
目的: Read the mean \(\bar{x}\) and standard deviation directly, and the gradient/intercept (and \(r\)) of a linear regression for bivariate data.
使う場面: Any data-handling, statistics, or required-practical analysis question.
手順
Enter the data in STAT mode (1-VAR or A+BX), then recall \(\bar{x}\), \(\sigma\) or the regression coefficients.
試験での注意: Allowed, but clear stored programs/data (graphical calculators in exam mode) and show the required working — unsupported calculator answers score no method marks.
Carry exact values with Ans & memory
Scientific calculator (e.g. Casio fx-991 series)
目的: Keep full-precision intermediate values to avoid rounding errors.
使う場面: Multi-step calculations where premature rounding loses the final accuracy mark.
手順
Use Ans, STO/RCL or the M+ memory to reuse the unrounded result of each step; round only the final answer.
試験での注意: Allowed, but clear stored programs/data (graphical calculators in exam mode) and show the required working — unsupported calculator answers score no method marks.
Equation solver — to CHECK your working
Scientific calculator (e.g. Casio fx-991 series)
目的: Use the built-in EQN/SOLVE mode to verify roots of quadratics or simultaneous equations you have already solved by algebra.
使う場面: As a check only, after solving by hand.
手順
Enter the coefficients in EQN mode (or use SOLVE) and confirm they match your worked solution.
試験での注意: Allowed, but clear stored programs/data (graphical calculators in exam mode) and show the required working — unsupported calculator answers score no method marks.
よくあるミス
1high影響する配点: 2Business activity and influences on business
Failing to connect responses to the specified case study scenario (e.g., Ocean Vibes, CCT, Rabanne, or Samsung) in 'State' and 'Outline' questions.
回避方法: Always incorporate specific terms from the scenario case study (such as 'dolphin tours', 'bicycles', 'perfumes', or 'smartphones') rather than using generic business language.
2high影響する配点: 1Accounts analysis
Presenting calculation answers without writing down the step-by-step numbers substituted into the formula.
回避方法: Always write out the direct substitution step (e.g., showing 60,000 / 80,000 x 100) before typing the calculation into your calculator to guarantee method marks.
3medium影響する配点: 1Accounts analysis
Failing to carry out calculated answers to exactly two decimal places as requested in the exam prompts.
回避方法: Carefully round your final calculator answer to two decimal places (e.g., rounding 8.2568% to 8.26% or current ratio of 2.4077 to 2.41) to avoid losing the final accuracy mark.
4high影響する配点: 4Business finance – sources
Structuring 9-mark Justify essay questions as a generic list of pros and cons for both options rather than a deep, balanced evaluation of the chosen option compared to the rejected option.
回避方法: Select one option to analyze deeply (with its context-driven benefits and disadvantages), then use your conclusion to explicitly compare it against and dismiss the rejected alternative.
5high影響する配点: 2The marketing mix
Failing to build a clear, multi-stage logical chain of cause-and-effect in 3-mark 'Explain' questions, often stopping after only one layer of consequence.
回避方法: Use consequence connectors (such as 'as a result', 'this means that', 'leading to') to build a complete sequence from the initial point to the eventual consequence on profit or revenue.
6medium影響する配点: 3Recruitment and selection process
Confusing a 'person specification' (skills, qualifications, and attributes) with a 'job description' (tasks, roles, and duties) in recruitment questions.
回避方法: Remember that a person specification describes the ideal human qualities required (such as bilingual ability), whereas a job description describes what the employee will physically do on a day-to-day basis.