How the School-Based Assessment is marked, how Paper 032 works for private candidates, and a self-marked 20-mark extended-response practice question.
5 narrated scenes. Press play, listen and read along — the points appear as they are explained. Use ‹ Prev / Next › or the scene bar to jump to any scene.
One in five marks in the whole exam comes from Paper 3. Know exactly how those marks are awarded and you can plan them in from day one.
Narration uses your device’s built-in voice. No sound? Switch to “Captions only” — the captions advance on their own.
Copy these into your notebook in your own words — that is how they stick.
Project report, ≤ 1 000 words, marked out of 30: Title 2, Introduction 6, Method 3, Presentation 8, Analysis 6, Conclusion 3, Overall presentation 2.
Conceptual 9, Algorithmic 12, Reasoning 9.
CXC moderates a sample of each teacher’s marks; marks are shared equally across the three modules.
Private candidates; 1 hour; three optional questions (one per module); attempt one; 20 marks (CK 6, AK 8, R 6).
Paper 031 or Paper 032 = 20% of the grade.
Define → calculate (show all steps) → interpret → conclude.
Present genuine raw data first; label tables and graphs.
Explain what your numbers mean in the context of the question.
8 items modelled on real CSEC Paper 1 questions. Choose one answer for each, then check. Aim for 80% or better. Work each item on paper first.
Write full answers, then reveal the mark scheme and tick the points you earned (20 marks in total). Show all your working — method marks count. Your answers are saved on this device.
Question 1 [20 marks]
A school classroom is 8 m long, 6 m wide and 3 m high. The four walls are to be painted. The room has one door of area 2 m² and two windows each of area 1.5 m². Paint is sold in 4-litre tins at $95 per tin; one litre covers 8 m² of wall for one coat, and two coats are needed. A painter charges C dollars where C = 150 + 25h, and h is the number of hours worked.
(a) (a) Calculate the total area of the four walls and the area to be painted after the door and windows are excluded. [3]
(b) (b) Calculate the number of litres needed for two coats, and the number of tins to buy. [3]
(c) (c) The shop offers a 12% discount on the paint. Calculate the cost of the paint. [3]
(d) (d) Calculate the painter’s charge for 10 hours of work, and the number of hours of work for a charge of $700. [4]
(e) (e) The school’s budget is $900. Show that the total cost for 10 hours of painting is within budget, and calculate the percentage of the budget used, to 1 decimal place. [3]
(f) (f) State the meaning of the number 25 and the number 150 in the painter’s formula C = 150 + 25h, and describe the graph of C against h (gradient, intercept). [4]
Everything in this lesson is based on these parts of the CXC syllabus and papers.