CSEC ADDITIONAL MATHEMATICS · EXAM PREPARATION · LESSON E3

Paper 3: The SBA Project (031) and the Paper 032 Alternative

How the School-Based Assessment is marked, the difference between Project A and Project B, how Paper 031 and Paper 032 are weighted, and a self-marked practice evaluating a project plan.

Papers 1, 2 and 3Paper 031Paper 032≈ 35 min
Before you start

By the end of this lesson you can…

Step 1 · Watch

Explainer video

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.

LESSON E3 · EXPLAINER

Paper 3: The SBA Project (031) and the Paper 032 Alternative

One mark in five comes from Paper 3. Know the mark scheme from the first day and your project plan writes itself.

Narration uses your device’s built-in voice. No sound? Switch to “Captions only” — the captions advance on their own.

Step 2 · Read

Key notes

Copy these into your notebook in your own words — that is how they stick.

Paper 031

Project A or B; 30 marks weighted to 40; moderated; 20% of the grade.

Groups

Up to six, with every member actively participating.

Project A

Title 2, Purpose 2, Formulation 6, Solution 11, Application 3, Discussion/Conclusion 4, Presentation 2.

Project B

Title 2, Purpose 2, Data collection 4, Presentation of data 5, Analysis 8, Discussion/Conclusion 7, Presentation 2.

Paper 032

Private candidates; one compulsory question; 1½ hours; 30 marks; CK 9, AK 12, R 9.

Weighting

Paper 3 = 20% of the final grade (30 marks weighted to 40).

Transfer

Add Maths SBA marks may be transferred to Mathematics (same sitting) but not vice versa.

Moderation

CXC moderates a sample of each teacher’s SBA marks.

EXAM TIPS & COMMON MISTAKES

  • Choose the project type that suits you: Project A if you enjoy proof and modelling, Project B if you enjoy data.
  • Project A: the solution (11 marks) wants assumptions, diagrams, theorems, precise calculations and a clearly stated solution.
  • Project B: collect genuine data, use two or more analysis approaches and state limitations.
  • Give every project a clear, concise title that relates to a real-world problem.
Step 3 · Practise

Paper 1 practice — multiple choice

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.

CSEC syllabus · SBA

1. The Paper 031 SBA project in Additional Mathematics is marked out of

Answer: B. Marked out of 30 and weighted to 40.
CSEC syllabus · SBA

2. The SBA contributes what percentage of the final grade?

Answer: B. 20% of the final assessment.
CSEC syllabus · Paper 032

3. Paper 032 is intended for

Answer: C. It is the alternative to the SBA for private candidates.
CSEC syllabus · Paper 032

4. Paper 032 consists of

Answer: D. One question.
CSEC syllabus · Paper 032

5. The duration of Paper 032 is

Answer: A. 1½ hours.
CSEC syllabus · SBA

6. Which project requires the collection of data?

Answer: B. Project B is experiment based.
CSEC syllabus · SBA

7. In Project A, which criterion carries the most marks?

Answer: B. The problem solution is worth 11 of the 30 marks.
CSEC syllabus · SBA

8. The largest number of marks in Project B is for

Answer: C. Analysis of data is worth 8 marks.
Step 4 · Apply

Mock paper — self-marked

Write full answers, then reveal the mark scheme and tick the points you earned (15 marks in total). Show all your working — method marks count. Your answers are saved on this device.

SBA practice · Evaluating a project plan

Question 1 [15 marks]

A student proposes Project A: “To find the dimensions of an open box of greatest volume made from a 20 cm square sheet of card by cutting equal squares from the corners.”

(a) State whether this is Project A or Project B and give a reason. [2]

MARK SCHEME — (a) (max 2)

(b) Write a clear title and a purpose (objective) for the project that is appropriate in difficulty. [4]

MARK SCHEME — (b) (max 4)

(c) List FOUR assumptions the student should state in the problem solution. [4]

MARK SCHEME — (c) (max 4)

(d) Show the key steps of the mathematical formulation and the solution. [5]

MARK SCHEME — (d) (max 5)

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Sources

Syllabus sources and past papers

Everything in this lesson is based on these parts of the CXC syllabus and papers.