G3 Design Studies tuition can help by turning three attractive labels into three testable questions. Desirability asks whether the idea serves people and feels worth using. Feasibility asks whether it can function and be realised. Viability asks whether it can make sense in its market or operating context. A strong concept balances all three; it does not win by being excellent in only one.
Start today with a page divided into three columns. Put one current design idea at the top, then require one piece of evidence and one unresolved risk under each heading. If the child writes only opinions such as “users will love it”, the next lesson should focus on evidence. If feasibility is full but desirability is empty, the project may be solving the making problem before the human problem.
G3 is the subject level, not the student’s Posting Group. Design Studies K376 is an Applied Subject for candidates from approved schools. The assessed 30-hour Design Project is the candidate’s own work under the school’s rules; outside help should build transferable thinking with unrelated briefs, never reshape the submitted concept, journal or presentation.
G3 DESIGN STUDIES · K376 · DECISION ROUTE
Move from a liked idea to a balanced concept
1. Give each factor a different job
The three factors overlap, but they are not interchangeable. Desirability begins with people: needs, comfort, accessibility, clarity and emotional response. Feasibility begins with function: materials, construction, technology, time, safety and available skills. Viability begins with continued use: cost, maintenance, storage, marketability and whether the organisation or customer would sustain the solution.
A design can be desirable but not feasible: a paper-thin shelter may delight users yet fail structurally. It can be feasible but not viable: a robust display may cost too much to produce repeatedly. It can be viable on paper but undesirable: a cheap system nobody wants to use has not solved the human problem.
The K376 wording places human factors at the centre of design thinking. That does not mean feasibility and viability are optional. It means the learner should begin by understanding people, then optimise the design across technology and business rather than letting the easiest material or cheapest feature dictate the whole concept.
2. Find what is missing from the decision
A tutor should ask the student to defend one feature three times, changing the audience of the explanation. First speak to the user, then to the maker, then to the person funding or operating the solution. The point where the explanation becomes vague identifies the missing lens.
| Student sentence | What it reveals | Better prompt |
|---|---|---|
| “It looks nice, so people will buy it.” | Preference is standing in for user evidence | Which user need does the feature address, and how would you know? |
| “We can make it from wood.” | A material is named without functional proof | What load, joint, process or constraint makes that choice workable? |
| “It is cheap.” | Price is treated as the whole of viability | What about maintenance, storage, replacement and repeated use? |
| “The strongest option is best.” | One metric has swallowed the design brief | What usability, weight, cost or appearance is traded away? |
This diagnosis prevents a common tuition mistake: teaching students to paste three headings into a journal after the design has already been fixed. The three lenses should change the design while choices are still open.
3. Balance a fictional community book-swap display
Use an unrelated practice brief: design a collapsible tabletop display for a weekend community book swap. It must help visitors identify genres quickly, fit into a small storeroom after the event and be reusable by volunteers. This is deliberately separate from any assessed school brief.
| Lens | Evidence-led question | Possible risk |
|---|---|---|
| Desirability | Can a child, an older visitor and a volunteer read the genre labels and reach the books comfortably? | Attractive small lettering may be hard to read across the table |
| Feasibility | Can the display stand securely, fold repeatedly and be assembled with available processes? | A clever hinge may be fragile or beyond the available making skill |
| Viability | Can organisers afford, store, maintain and reuse it across events? | A premium finish may make replacement panels too expensive |
Now make one deliberate trade-off. Enlarging the labels improves readability but reduces display space. The student might respond by using colour-coded removable headers rather than shrinking the type. That revision protects desirability, stays feasible with simple panels and supports viability because damaged headers can be replaced separately.
The quality of the answer comes from the chain: evidence → tension → change → consequence. “I improved viability” is not enough. “A replaceable header reduces the cost of repairing the whole display, while the larger type retains readability” shows why the decision balances two factors without pretending every trade-off disappears.
For conditional three-student tuition, one learner can act as user advocate, one as technical reviewer and one as operator. They rotate roles before each student revises a different fictional concept independently. Confirm specialist subject provision first; the exercise explains a teaching mechanism, not an assertion that every centre offers K376.
4. Match the 2027 K376 language and limits
The official 2027 G3 Design Studies syllabus K376 describes good design as optimising human factors—form or desirability—technology factors—function or feasibility—and business factors—marketability or viability. It also states that human factors are the main consideration in design thinking.
The assessment comprises a 2.5-hour written examination worth 40% and a 30-hour Design Project worth 60%. The project includes an individual Design Journal, a digital presentation and an oral presentation with scenario-based questions. That makes explanation and flexible application important, but it also makes authorship boundaries non-negotiable.
Tuition may teach the three-lens framework, critique unrelated examples and help the learner practise explaining trade-offs. It should not choose features for the live assessed project, rewrite the Design Journal, prepare scenario answers from the submission or polish the digital presentation beyond what the school permits. When in doubt, the school’s instructions govern.
5. Check for decisions that survive a new brief
Independent progress is not the ability to recite three definitions. Give a new, ordinary brief—perhaps a reusable queue-number holder for a school event—and watch whether the student can:
- identify a real target user before proposing features;
- separate user evidence, technical constraints and operational evidence;
- name one conflict between two desirable outcomes;
- revise a feature and explain what improves and what is sacrificed; and
- avoid claiming that one material, low price or attractive form proves the whole design is good.
If the child can do this on two unrelated briefs without copying the same feature, the framework is becoming genuine design thinking. If every response is “make it cheaper” or “make it stronger”, return to the people and context before adding more terminology.
Useful next reading
- Develop and test a G3 Design Studies proposal
- What a tutor can safely help with before the 30-hour project
- Browse the MOE and SEAB syllabus tuition directory
Did you know? “Balance” rarely means giving the three factors equal space. It means keeping the human need visible while making a solution that can work and continue to make sense.

