How to Study G1 Design and Technology | SEC Syllabus K124

The official K124 syllabus uses a written examination and an individual design project.

The design project includes a Design Journal and Presentation Board, with mock-ups and the resulting prototype forming part of the journal submission. It is based on the actual examination question and conducted through the school.

Paper 1 questions apply design knowledge and technology, including mechanisms and electronics. Check the full syllabus for complete content, formats and assessment details.

Keep theory and project learning connected in your plan. A technical fact becomes more useful when you can explain how it affects a design decision. A project decision becomes more convincing when evidence and appropriate technical knowledge support it.

A project can struggle for several reasons. The need may be unclear, the user may be poorly understood, the selected material may not suit the function or the mechanism may not produce the intended movement.

These problems need different repairs. Making a neater drawing will not solve an incorrect assumption about how the user holds the product.

Review a recent task and ask where the reasoning first becomes uncertain. Can you explain the need? State a testable requirement? Show alternatives? Justify a technical choice? Demonstrate that the prototype works in the intended situation?

Choose one target. “Test whether the base remains stable with the object in place” gives you a useful next action. “Improve the design” is too broad.

After the test, decide what the evidence changes. A failed trial is useful if it helps you refine the need, reject an unsuitable option or improve a specific feature.

Start with what someone is trying to do. Identify the activity, environment and difficulty rather than describing an imaginary customer in vague terms.

For an original practice problem, a student uses a book while making handwritten notes on a small desk. The book repeatedly closes, and the available writing area is limited.

The need is not simply “a book stand”. That is already a proposed product. The underlying difficulty is keeping the book readable and open while preserving usable desk space.

Observe the activity or use information supplied in the task. What size is the book? How is it positioned? When does it close? Which movements must remain possible?

Separate observation from assumption. If you have not checked that the user wants a portable product, record it as an unanswered question rather than a fact.

This distinction keeps your design grounded. A clear description of the activity gives later choices something concrete to respond to.

A design brief states the job you intend to address. Specifications describe what a successful solution should do or satisfy.

For the book example, a brief might concern helping a student keep a book open and readable on a small study desk. Specifications could address stability, access to pages, available space and safe handling.

Where appropriate, make a requirement measurable. “Fits within the available desk area” becomes more useful when that area has been measured. “Easy to use” needs a practical interpretation, such as opening the device or turning a page without unnecessary steps.

Do not choose arbitrary dimensions merely to make the specification look precise. Connect numbers to the user, object, environment or test.

Distinguish essential requirements from preferences. A product must remain stable; its colour may be a preference depending on the task.

Review specifications after research and testing. If an original assumption was wrong, update the reasoning within the permitted process rather than forcing every later decision to preserve it.

Research should reduce uncertainty. Before collecting information, write the question you need answered.

For the book support, you might investigate how existing products hold pages, what dimensions suit the objects used or which materials can provide the required stiffness.

Analyse what a source tells you and what it does not. A photograph may show appearance but not establish strength, ease of assembly or durability.

Use an existing product to learn a principle, not to copy the complete solution. Compare how different products address the same difficulty and which conditions differ from your situation.

Keep source details and your own observations distinct. This makes it clear which information came from a reference and which came from testing.

At the end of a research session, state the design decision it informs. If a page of information changes no question or choice, reconsider whether it belongs in the project record.

Create several possible ways to solve the need. Change a meaningful feature, such as support arrangement, adjustment, movement or storage.

For the book example, one idea might use a fixed inclined support, another an adjustable support and another a foldable structure. These alternatives have different consequences worth testing.

Compare them against the specifications. Which preserves desk space? Which allows page access? Which can be made with the available tools and materials?

Avoid treating three colour changes as three different functional ideas. Appearance matters, but it should not hide the absence of alternative solutions to the actual problem.

Make quick sketches with enough detail to explain the principle. Elaborate rendering is unnecessary while the main decisions remain unresolved.

Select a direction provisionally, then test its uncertain part. You can return to another option if evidence shows that the first cannot meet an important requirement.

Different drawings do different jobs. A quick sketch explores an idea. A working drawing communicates dimensions and construction details. A presentation view helps someone understand the proposed solution.

Choose the drawing for its purpose. If you are deciding how two parts join, show the joint clearly rather than spending the session shading an unrelated surface.

For an original small support, sketch the front, side and overall arrangement. Check whether the views agree about the shape and dimensions.

Add measurements where they guide construction or a design decision. Keep units consistent. A dimension without a unit can create uncertainty.

Use an exploded view when separating parts makes assembly easier to understand. Explain how the parts fit together rather than placing them apart merely for visual effect.

Ask someone to describe the mechanism or construction from the drawing. If they misunderstand, inspect which information is missing. A useful drawing makes the relationship visible to someone who did not make it.

Learn material properties through practical comparisons. Strength, stiffness, hardness and toughness describe different behaviours; they are not interchangeable praise words.

For a book support, stiffness may matter because the supporting part should resist bending under the intended load. Surface properties and practical joining methods may also influence the choice.

Compare candidates using the function, available processes, cost and task conditions. A material that suits a shape but cannot be worked with the available equipment may not be a practical choice.

Use teacher-approved tests and examples to understand the relevant property. Record what the test demonstrates and the conditions under which it applies.

Do not claim that one material is always best. A change in size, thickness, load or manufacturing method can alter the decision.

For a written answer, connect the property to the need: state which property matters, why it matters here and how the selected material supports it. This is stronger than listing several material names.

Begin by identifying the movement you put in and the movement you need out. Then examine how the parts transmit or change that movement.

For an original gear exercise, a driver with 20 teeth turns a driven gear with 40 teeth. In a simple meshing pair, one full turn of the driver moves the driven gear through half a turn. The driven gear rotates in the opposite direction.

Explain the relationship by following the teeth that pass through contact. This helps you understand the ratio rather than memorise an answer for those particular numbers.

For a lever, identify the pivot, effort and load in the supplied situation. For a cam, observe how its rotation produces a follower's movement. The names help only when you can trace the action.

Use diagrams or approved classroom models to inspect motion. Predict the result, test it and compare. If the model behaves differently, inspect the arrangement before changing unrelated parts.

Choose a mechanism because its output suits the design need. A complicated mechanism is not automatically a more effective solution.

A control-system description becomes clearer when you identify input, processing and output. Ask whether information about the outcome returns to influence control.

For an original light-sensing exercise, the input concerns light level, the process compares or responds to that input and the output is the intended device action. The precise operation depends on the provided circuit or kit.

Distinguish knowing a component's name from explaining what it does in the system. The same component can serve a different role in another arrangement.

In a written question, use the supplied conditions. If the question provides a sensor reading and a decision rule, follow that rule rather than assuming how a familiar household product must behave.

For practical learning, use the approved low-voltage kits and procedures taught by your school. Check one connection or condition at a time when troubleshooting.

Record the expected response and actual response. That comparison gives you a clear starting point for finding whether the difficulty concerns input, logic, connection or output.

A mock-up does not need to reproduce every feature of a final product. It should help you investigate something important.

For the book support, a cardboard model might test the viewing angle, occupied space and access to pages. It would not automatically prove the strength of a later material or joint.

State the test question before making the model. Otherwise, you may produce an attractive miniature without learning whether the idea works.

Use realistic conditions where appropriate: a representative book, the actual available space and the user's intended movement. Explain any difference between the test and final situation.

Record what happened with enough detail to guide a change. “The page clip covered text near the edge” is more useful than “The model was bad”.

Then revise the relevant feature or reconsider the concept. Testing should influence decisions; it is not just a photograph to add after the design has already been fixed.

Before making, identify the parts, materials, processes and dependencies. Know which steps must happen before others.

For an original assembly, dimensions may need checking before marking out, parts may need shaping before joining and a fit may need testing before finishing.

Use the methods and equipment taught under school supervision. A process should be appropriate to the material, task and learner's competence.

Build a small plan that includes preparation, making, checks and refinement. Include realistic time for an uncertain joint or mechanism rather than assuming every step works first time.

During making, compare actual dimensions and behaviour with the drawing. An early mismatch is easier to address before several dependent parts are completed.

Afterwards, identify what the prototype demonstrates and what remains uncertain. A working appearance does not necessarily establish that the solution meets every user requirement.

Return to the user, need and requirements. Test the relevant function instead of judging only whether the product looks finished.

For the book support, check stability with the intended book, available writing space and page access. Record what happens under the stated conditions.

If the support tips when a page is turned, identify the situation and investigate the relevant geometry, base or load distribution. Avoid changing the colour as though it repairs the functional problem.

Compare alternatives where useful. A wider base may improve stability while occupying more space. Explain the trade-off and why the final choice suits the task.

Acknowledge limitations accurately. Evidence from one trial may support a narrow conclusion rather than a claim that the product works for every user and object.

Use the evaluation to make a targeted refinement, then repeat the relevant test. The result should show whether the repair improved the problem it was intended to address.

A project record should preserve the decisions and evidence as they develop. Record observations, alternatives, tests and changes while they are still clear in your mind.

Use sketches and relevant notes to show how you reached the solution. A polished story written much later can hide uncertainty and the evidence that changed the design.

Follow the official guidance about real-time design sheets and your school's submission process. Keep the journal, models and prototype organised so the relationships between them can be understood.

If a test changes your direction, show that change honestly. It demonstrates reasoning when the evidence and response are clear.

Keep source information attributable and separate from personal findings. A borrowed diagram should not appear to be your own original observation.

The Presentation Board has a different purpose: communicate the proposed solution and its relevant features. Use it to explain the final design while the journal preserves the process that produced it.

Read what the question requires: a sketch, an explanation, a material choice, a prediction or a calculation. Respond to that job directly.

For a material-choice answer, connect a property to the specified function. For a mechanism question, trace input and output. For a design improvement, state the changed feature and explain the problem it addresses.

An original question might ask how to improve access to a container's contents. A useful answer identifies a relevant opening or layout change and explains how it helps the user in that situation.

“Make it better and safer” does not yet describe a design decision. The answer needs a specific feature and relationship.

Check diagrams against words. If the explanation says a component moves upward but your arrows show the opposite, repair the mismatch.

During correction, locate the first wrong assumption or technical step. Then attempt a changed question that uses the same principle in a different product.

Balance theory, sketching, technical practice and project review within the school programme. Each session should answer a question or develop a defined skill.

Try this original check: define the need behind a book that will not stay open; state two testable requirements; sketch two functionally different solutions; and explain what a cardboard mock-up could and could not demonstrate.

A useful need statement concerns readable, accessible pages in the actual setting. Requirements should follow from that setting. Alternatives should change a functional arrangement. A cardboard model can examine layout and use, while final strength depends on the later material and construction.

For a mechanism check, explain why a simple 20-tooth driver turns a 40-tooth driven gear through half a revolution for each driver revolution. Then change the numbers and reason again.

Parents and tutors can ask what the learner is testing and what evidence changed the decision. Support should strengthen the student's ownership of the design process.

The eduKateSG guide to the Secondary 1 learning transition explains why precise diagnosis improves practice. Apply it by distinguishing a user-understanding gap, technical gap and testing gap before adding more work.

For your next session, identify one uncertainty, create a useful test and explain the next decision. This gives D&T study a clear connection between knowledge and a solution that works.

Official source and scope

Examination details checked on 13 October 2026 against the SEAB 2027 G1 school-candidate directory and K124. Follow the complete syllabus, actual project brief and school workshop instructions for full requirements.