Criterion C is about making: a plan someone else could follow, skilled and safe work, a solution that works, and honest records of what you changed and why.
Ordered steps, times, tools and materials that another person could follow.
Evidence of skilled, safe use of tools, software or techniques.
A solution that works as intended, built in line with the plan.
Each change to the design or plan is recorded with the reason and evidence.
The finished solution is shown clearly, as a whole.
A little of the criterion is addressed. Ideas are basic, partly missing, or not linked to the task.
The main points are there but thin. Some explanations are correct; links to the task or evidence are incomplete.
Mostly accurate, well explained and consistently tied to the task, with only small gaps.
Detailed, precise and justified throughout, with ideas connected and applied to new situations or evidence.
A plain-language guide only. Your teacher marks against the official IB level descriptors.
Record a change made during making.
I changed the button size.
Week 3: I increased the button width from 12 mm to 20 mm because during the first trial the client missed the button twice (photo 4). This meets specification point 2, which requires large controls, and I updated the plan to include a longer printing time.
Criterion C is Creating the solution. It is marked out of 8 across 5 strands (C.i, C.ii, C.iii, C.iv, C.v). Criterion C is about making: a plan someone else could follow, skilled and safe work, a solution that works, and honest records of what you changed and why.
Write the plan as numbered steps with times, tools, materials and safety points. Keep a dated log with photos or screenshots as you work. When you change the design or plan, record what changed, why, and the evidence that prompted it.
A plan written after the work is finished. Changes made but never explained. A log entry with only the date and made progress.
Written by CritABCD for study and revision, in our own words. The official MYP Design guide and assessment criteria are published by the International Baccalaureate. Official IB guide ↗