A complete 15-mark SBA example: problem definition, IPO chart, flowchart or pseudocode, trace table, program, language features and documentation.
4 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.
This is the biggest SBA component. A clear walk through one worked example shows exactly what to submit for each mark.
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.
Input, calculation, selection, loop.
6 marks.
4 marks; test both branches.
1 mark; print source and output.
3 marks: variables, I/O, selection, loop.
1 mark: comments + user guide.
20–40 lines is enough.
Print everything.
3 quick games on this lesson. Earn XP and badges as you play — your best score for each game is saved. Games are for practice and do not change your exam readiness. More games in the Information Technology Arcade.
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 (8 marks in total). Show all your working — method marks count. Your answers are saved on this device.
Question 1 [8 marks]
A candidate writes a program to calculate canteen bills with a 10% discount over $50.
(a) (a) State the four items needed for the algorithm marks. [4]
(b) (b) State two language features the program should use. [2]
(c) (c) Explain why test data should include values above and below $50. [2]
Everything in this lesson is based on these parts of the CXC syllabus and papers.