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Catches real method errors, but is more generous than the senior examiners on how an answer is written, for example accepting a “show that” without its key step.
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- Homework and topic quizzes
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Generous on presentation-dependent marks (“show that”, notation). Use a higher examiner for mocks that count.
How it marked a real Pearson Edexcel IAL Pure Mathematics 1 (WMA11), October 2022 script
Whole paper: 45/75.
- 7(a) Range of x for which f(x) < 6, from the graph: 1/3. The inside interval between −1 and 2 is identified (M1). The ranges are not stated as inequalities, so A1 and B1 are withheld.
- 7(b) Largest solution of f(2x) = 6: 1/1. The largest solution is correctly given as 1.5.
- 8(b) Area of triangle AOB: 2/2. Two sides and their included angle, with the exact area correct.
- 8(c) Show that AB = 3√3 m: 2/2. The cosine rule is correctly applied and gives the required length.
- 8(d) Total area of the pond surface: 0/5. The total omits the area of triangle ABC.
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- a two-page question: Rs 3 · $0.02 · AED 0.06
- a six-page class test: Rs 4 · $0.02 · AED 0.08
- a full 28-page paper: Rs 9 · $0.05 · AED 0.18
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