📚 KS3 WJEC Engineering: Summer Prep and Transition Course | KS3 WJEC 工程：暑期预习与衔接课程
Engineering shapes the world around us, from the bridges we cross to the phones in our pockets. This summer preparation and transition course is designed to introduce Key Stage 3 learners to the fundamentals of WJEC Engineering. You will build a strong foundation in design, materials, electronics, and mechanical systems, making the move into Year 7 or Year 8 smooth and exciting. Let’s explore how engineers think, solve problems, and bring ideas to life.
工程塑造了我们身边的世界，从我们经过的桥梁到口袋里的手机。本暑期预习与衔接课程旨在向 KS3 阶段的学生介绍 WJEC 工程学的基础知识。您将在设计、材料、电子和机械系统方面打下坚实基础，让升入七年级或八年级的过渡变得轻松而有趣。让我们一起探索工程师如何思考、解决问题并将创意变为现实。
1. What Is Engineering? | 什么是工程？
Engineering is the practical application of science and mathematics to design, build, and maintain structures, machines, and systems. Unlike pure science, which asks "why" something happens, engineering asks "how" we can use that knowledge to create useful things. The discipline is often divided into branches such as civil, mechanical, electrical, and electronic engineering.
工程是运用科学和数学来设计、建造和维护结构、机器与系统的实践。纯科学探索事物“为什么”发生，而工程则问我们“如何”利用这些知识创造有用的东西。工程学通常分为土木、机械、电气与电子工程等分支。
- Civil engineering deals with infrastructure like roads and dams. | 土木工程涉及道路和水坝等基础设施。
- Mechanical engineering focuses on moving parts and forces. | 机械工程专注于运动部件和力。
- Electrical engineering handles power generation and circuits. | 电气工程处理发电和电路。
At KS3 level, you will get a taste of all these areas through hands-on projects and design challenges. Understanding what engineering truly means helps you see why problem-solving and creativity are just as important as technical knowledge.
在 KS3 阶段，您将通过动手项目和设计挑战初步接触所有这些领域。理解工程的真正含义能帮助您认识到，为什么解决问题和创造力与技术知识同样重要。
2. The Engineering Design Process | 工程设计流程
Every engineered product starts with a problem and follows a systematic design process. The WJEC approach emphasises iterative design: you plan, create, test, and then improve your work in cycles. The main stages are Ask, Imagine, Plan, Create, and Improve — often called the engineering design loop.
每一件工程产品都始于一个问题，并遵循一个系统的设计流程。WJEC 课程强调迭代式设计：你计划、创造、测试，然后通过循环来改进。主要阶段包含提问、构思、计划、创造和改进——通常称为工程设计循环。
Ask: Identify the need or the problem. For example, “How can we make a classroom chair more comfortable without increasing cost?”
提问: 明确需求或问题。例如，“如何在不增加成本的前提下让教室椅子更舒适？”
Imagine: Brainstorm multiple solutions, sketching ideas freely. No idea is too silly at this stage.
构思: 头脑风暴出多种解决方案，自由绘制草图，在这个阶段没有想法是愚蠢的。
Plan: Select the best idea and produce detailed drawings with dimensions and materials.
计划: 选择最佳方案，制作带有尺寸和材料的详细图纸。
Create: Build a prototype using tools and materials, following your plan but adapting when necessary.
创造: 使用工具和材料制作原型，遵循计划同时根据需要进行调整。
Improve: Test the prototype, collect feedback, and modify the design. This loop may repeat several times.
改进: 测试原型，收集反馈，修改设计。这个循环可以重复多次。
Recording each step in a design portfolio is a key WJEC expectation, as it shows how your thinking evolved. Even failed tests are valuable because they teach you what to change next.
在 WJEC 课程中，把每一步记录在设计作品集中是很关键的，因为它展示了你思考的演变过程。即使失败的测试也很有价值，因为它们告诉你下一步该改变什么。
3. Health and Safety in the Workshop | 车间健康与安全
Before you pick up any tool, you must understand workshop safety rules. Engineering environments contain sharp blades, hot glue guns, soldering irons, and heavy materials. The golden rule is to always protect your eyes, hands, and feet, and to work only under supervision when using machinery.
在你拿起任何工具之前，必须了解车间安全规则。工程环境中包含锋利的刀片、热胶枪、烙铁和沉重的材料。黄金法则是始终保护眼睛、手和脚，并在使用机器时只在监督下操作。
Personal protective equipment (PPE) is essential. Safety goggles guard against flying debris, while cut-resistant gloves protect hands when handling sheet metal or wood. Sturdy footwear prevents injuries from dropped objects. Long hair must be tied back, and loose clothing tucked in to avoid getting caught in rotating parts.
个人防护装备（PPE）必不可少。护目镜可防止飞溅碎屑，防割手套在处理金属板或木材时保护双手。结实的鞋子能避免被掉落物体砸伤。长发必须束起，宽松衣物要扎好以免卷入旋转部件。
Always carry sharp tools with the tip pointing down, and never run in the workshop. Learn the location of emergency stops and fire extinguishers. By following these practices, you build a habit of safety that professional engineers rely on every day.
携带锋利工具时要尖端朝下，绝不在车间奔跑。了解紧急停止按钮和灭火器的位置。遵循这些做法，你就能养成职业工程师日常所依赖的安全习惯。
4. Materials and Their Properties | 材料及其性能
Choosing the right material is one of the most critical decisions in engineering. Materials are classified into metals, polymers, ceramics, composites, and woods. Each has specific mechanical and physical properties, such as hardness, strength, conductivity, and flexibility, that determine its suitability for a job.
选择正确的材料是工程中最关键的决定之一。材料分为金属、聚合物、陶瓷、复合材料和木材。每种材料都有特定的力学和物理性能，如硬度、强度、导电性和柔韧性，这些决定了其是否适合某项工作。
| Material | 材料 | Density (kg/m³) | 密度 | Tensile Strength | 抗拉强度 | Conductivity | 导电性 |
|---|---|---|---|
| Mild steel | 低碳钢 | ≈7860 | High | 高 | Good | 良好 |
| Aluminium | 铝 | ≈2700 | Moderate | 中等 | Excellent | 极佳 |
| Acrylic (PMMA) | 亚克力 | ≈1200 | Low | 低 | Poor insulator | 不良绝缘体 |
| Pine wood | 松木 | ≈500 | Low along grain | 顺纹较低 | Insulator | 绝缘体 |
Properties like ductility (ability to be stretched into wires) and brittleness are also tested by simple experiments. For instance, heat-treating a paper clip makes it brittle, showing how processing changes material behaviour. At KS3, you will sort materials, test them with basic equipment, and justify your choices in design tasks.
延展性（被拉成细丝的能力）和脆性等性能也可以通过简单实验测试。例如，对回形针进行热处理会使其变脆，展示加工如何改变材料行为。在 KS3 阶段，你要对材料进行分类，用基本设备测试，并能在设计任务中证明所选材料的合理性。
5. Preparing for Your Transition to KS3 Engineering | KS3 工程衔接准备指南
Moving into secondary school engineering can feel challenging, but a summer transition programme turns nervousness into confidence. The WJEC KS3 course expects you not only to acquire practical skills but also to read technical instructions, use CAD software, and work collaboratively. This section gives you a picture of what lies ahead and how to prepare.
进入中学工程课程可能让人感到紧张，但暑期衔接课程能将紧张转化为自信。WJEC 的 KS3 课程不仅要求你掌握实践技能，还希望你会阅读技术说明、使用 CAD 软件并协同工作。本节将带你了解未来课程的内容以及如何做好准备。
Spend time practising measurement using a ruler and vernier calipers. Accuracy to the nearest millimetre is expected early on. You can create simple projects at home, such as building a cardboard bridge and testing how many books it can support. These activities develop design thinking and resilience when things don't work first time.
花时间练习使用直尺和游标卡尺测量。课程早期就要求精确到毫米。你可以在家完成一些简单项目，比如搭建一座纸板桥并测试它能支撑多少本书。这些活动能培养设计思维，并在首次尝试不成功时锻炼韧性。
Explore free CAD tools like Tinkercad to design a keyring or a simple machine part. WJEC encourages the use of ICT in engineering from the start. Even 15 minutes a few times a week will give you a head start. Also, watch videos about manufacturing processes such as injection moulding or laser cutting; understanding how everyday items are made fuels curiosity.
可以尝试使用 Tinkercad 等免费 CAD 工具来设计钥匙扣或简单的机器零件。WJEC 从一开始就鼓励在工程中使用信息技术，哪怕每周只花 15 分钟练习几次，也能让你领先一步。同样，观看注塑成型或激光切割等制造工艺视频，了解日常用品是如何制造的，会激发求知欲。
6. Workshop Tools and Manufacturing Processes | 车间工具与制造工艺
In KS3 workshops, you will use hand tools like hacksaws, files, drills, and soldering irons. Each tool has a specific purpose and must be held correctly. For example, when sawing wood, keep the blade perpendicular to the work and use long, even strokes. When filing metal, secure the workpiece in a vice and push the file forward only, lifting on the return stroke to preserve the teeth.
在 KS3 车间中，你将使用钢锯、锉刀、钻头和烙铁等手工具。每种工具都有特定用途，并且必须正确握持。例如，锯切木材时，要保持锯条与工件垂直，用长而均匀的行程。锉削金属时，将工件夹在台虎钳中，只向前推锉，回程时抬起以保护锉齿。
Manufacturing processes transform raw materials into finished products. Common ones include cutting, drilling, sanding, gluing, and soldering. Soldering is used to join electronic components on a circuit board by melting a filler metal (solder) at around 370°C. Always use a fume extractor and wash hands afterwards because solder often contains flux.
制造工艺将原材料转变为成品。常见的工艺包括切割、钻孔、打磨、粘接和焊接。焊接用于在电路板上连接电子元件，通过熔化填充金属（焊料）在约 370°C 的温度下实现。务必使用排烟器并在事后洗手，因为焊料常含有助焊剂。
More advanced processes, such as vacuum forming and 3D printing, may be introduced later. Vacuum forming heats a plastic sheet until soft and then sucks it over a mould using vacuum pressure. Understanding these techniques helps you choose the best method for your prototype and appreciate the complexity of mass production.
更先进的工艺，如真空成型和 3D 打印，可能会在之后介绍。真空成型将塑料板加热至软化，然后利用真空压力将其吸附在模具上。了解这些技术有助于你为原型选择最佳方法，并理解大规模生产的复杂性。
7. Introduction to Electronics and Circuits | 电子与电路入门
neering. You will build simple circuits using batteries, resistors, LEDs, and switches. The basic rule of electricity is Ohm' ts, I is current in amps, and R is resistance in ohms (Ω). While KS3 may not require heavy calculations, you should be able to see the relationship.
电子学是 WJEC 工程的重要部分。你将使用电池、电阻、LED 和开关搭建简单电路。电学的基本规则是欧姆定律：V = I × R，其中 V 是电压（伏特），I 是电流（安培），R 是电阻（欧姆 Ω）。虽然 KS3 不要求大量计算，但你应该理解这些量之间的关系。
A circuit must be complete for current to flow. You will learn to draw circuits using standard symbols: a cell is a long and short parallel line; an LED is a triangle with an arrow; a resistor is a rectangle. Breadboards allow you to prototype without soldering, making it easy to test ideas and rectify mistakes.
电路必须是闭合的才会有电流流动。你将学习使用标准符号绘制电路：电池是一个长线和短线平行的符号；LED 是一个带箭头的三角形；电阻是一个矩形。面包板让你无需焊接就能制作原型，方便测试想法和改正错误。
Pay attention to polarity: LEDs have a positive (anode) and negative (cathode) leg. Connecting them the wrong way round prevents them from lighting up. You will also explore sensors like light-dependent resistors (LDRs) and thermistors, which change resistance with light or heat. These components are the building blocks of intelligent systems.
注意极性：LED 有正极（阳极）和负极（阴极）引脚。接反了就不会亮。你还会探索光敏电阻（LDR）和热敏电阻等传感器，它们的电阻会随光或热变化。这些器件是智能系统的基本单元。
8. Mechanical Systems and Forces | 机械系统与力
Mechanical systems involve forces, motion, and the transfer of energy. At KS3, you will study levers, pulleys, gears, and linkages. A lever is a rigid bar pivoted on a fulcrum. By moving the effort closer to the fulcrum, you can lift a larger load — this is how a wheelbarrow works.
机械系统涉及力、运动和能量传递。在 KS3 阶段，你将学习杠杆、滑轮、齿轮和连杆机构。杠杆是绕支点转动的刚性杆。将施力点移近支点，就能提起更大的负载 —— 手推车就是这样工作的。
Forces are measured in newtons (N). When two surfaces rub together, friction opposes motion. Lubrication reduces friction, which is why oil is used in engines. Engineers also consider balanced and unbalanced forces: if forces on an object add to zero, it remains stationary or moves at constant speed; an unbalanced force causes acceleration.
力的单位是牛顿（N）。当两个表面相互摩擦时，摩擦力会阻碍运动。润滑可以减小摩擦，这就是发动机要使用机油的原因。工程师还需要考虑平衡力与不平衡力：如果作用在一个物体上的力总和为零，它将保持静止或匀速运动；不平衡力则会导致加速。
Simple gear trains show how rotational speed and torque can be altered. A small driver gear turning a larger driven gear increases torque but reduces speed. You can model these concepts by building a rubber-band-powered car or a cardboard automaton, observing firsthand how force and motion are linked.
简单的齿轮系展示了如何改变转速和扭矩。小主动齿轮带动大从动齿轮会增加扭矩但降低转速。你可以通过制作橡皮筋动力车或纸板自动机来模拟这些概念，亲眼观察力与运动如何关联。
9. Engineering Drawing and Communication | 工程制图与沟通
Engineers must communicate ideas clearly. Technical drawings follow strict rules so that anyone in the world can build the design. Orthographic projection shows three views: front, top, and side. Isometric drawing gives a 3D-like view on 2D paper, using 30° angles to show depth.
工程师必须清晰地传达想法。技术制图遵循严格的规则，以便世界上任何人都能根据图纸制作设计。正交投影展示三个视图：前视图、俯视图和侧视图。等轴测图在二维纸上给出类似三维的视图，使用 30° 角来表现深度。
Dimensioning is crucial. Lines are drawn precisely, and measurements are noted in millimetres. Never forget to include a title block with the project name, scale, material, and your name. WJEC encourages learners to first sketch freehand, capturing the essence of an idea before moving to formal drawings.
尺寸标注至关重要。线条要精确绘制，测量值以毫米为单位标注。不要忘记包含标题栏，写上项目名称、比例、材料和你的姓名。WJEC 鼓励学员先徒手绘制草图，抓住想法的精髓，然后再进行正式制图。
Modern engineering also uses CAD to produce 3D models and simulations. However, hand sketching remains a valuable skill because it’s fast and flexible. Practising with grid paper improves your proportion sense, and using a ruler and set square builds the precision needed in the workshop.
现代工程还使用 CAD 制作三维模型和模拟。但徒手草图仍然是一项宝贵的技能，因为它快速且灵活。使用方格纸练习可以提升比例感，而使用直尺和三角尺能培养车间所需的精确度。
10. Sustainability and the Role of the Engineer | 可持续发展与工程师的角色
Engineers have a responsibility to design in ways that protect people and the planet. Sustainable engineering means minimising waste, choosing renewable materials, and designing for energy efficiency. The six R’s — Rethink, Refuse, Reduce, Reuse, Repair, Recycle — form a useful framework for any KS3 project.
工程师有责任以保护人类和地球的方式进行设计。可持续工程意味着尽量减少浪费，选择可再生材料，并考虑能源效率进行设计。六个 R——重新思考（Rethink）、拒绝（Refuse）、减少（Reduce）、再利用（Reuse）、修复（Repair）、回收（Recycle）——为任何 KS3 项目提供了一个有用的框架。
When you choose materials, ask: Are they sourced locally? Can they be recycled after use? For example, using plywood from sustainably managed forests is better than using non-renewable plastic. Also, consider the whole life cycle of a product, from raw material extraction to disposal, known as cradle-to-grave analysis.
在选择材料时，要问：它们是否来自本地？用完后可以回收吗？例如，使用来自可持续经营森林的胶合板比使用不可再生的塑料更好。还要考虑产品的整个生命周期，从原材料开采到废弃处理，这称为从摇篮到坟墓的分析。
As a young engineer, you can design simple solar chargers or gravity-powered toys to explore clean energy. Ethical considerations, such as fair labour and safety, are also part of the engineering ethos. Discussing these topics in class prepares you for GCSE and beyond, where social and environmental impacts are core to the WJEC specification.
作为年轻的工程师，你可以设计简单的太阳能充电器或重力玩具来探索清洁能源。伦理考虑，如公平劳动和安全，也是工程精神的一部分。在课堂上讨论这些话题能为你准备 GCSE 及以后的学习，在那里社会和环境影响是 WJEC 规范的核心。
11. Mini Project: Paper Tower Challenge | 迷你项目：纸塔挑战
Let’s apply what you’ve learned with a simple, low-cost summer project. Your goal is to build the tallest free-standing tower using only 5 sheets of A4 paper and 30 cm of masking tape. The tower must support a small weight (a 50 g mass) at its top for at least 10 seconds without collapsing.
让我们用一个简单、低成本的暑期项目来应用所学知识。你的目标是仅用 5 张 A4 纸和 30 厘米美纹纸胶带，搭建一座最高的独立塔。塔顶必须能支撑一个小重物（50 克砝码）至少 10 秒而不倒塌。
Start by brainstorming: rolling paper into tubes makes it stronger in compression, just as columns are used in buildings. Triangles are often more stable than squares, so incorporate triangular bracing. Sketch your design before building and predict where failure might occur.
从头脑风暴开始：将纸卷成圆管可以增强其在压缩下的强度，就像建筑中使用柱子一样。三角形通常比正方形更稳定，因此要融入三角支撑。动手前先画出设计图，并预测哪里可能发生破坏。
Build, test, and then refine. Measure the height with a ruler and record the result. Note any unexpected buckling and modify your joints. This challenge mirrors real engineering: constraint, creativity, and testing under load. Share your photos and findings with a friend to get feedback.
建造、测试，然后优化。用尺子测量高度并记录结果。记下任何意外的屈曲并修改连接点。这项挑战反映了真实的工程：约束、创造力和承重测试。和朋友分享照片和发现来获取反馈。
12. Looking Ahead to the KS3 WJEC Classroom | 展望 KS3 WJEC 课堂
Entering the engineering classroom is the start of an exciting journey. The WJEC curriculum focuses on investigation, practical making, and evaluation. You will work in small teams, much like real engineering firms, and develop communication, time-management, and resilience. The summer bridge activities you complete now will give you a noticeable advantage.
走进工程课堂是一段激动人心旅程的开始。WJEC 课程注重探究、动手制作和评估。你将像真正的工程公司一样在小组中工作，培养沟通、时间管理和抗挫折能力。你现在完成的暑期衔接活动将带给你明显的优势。
Familiarise yourself with the vocabulary: words like prototype, specification, tolerance, and torque will appear regularly. Keep a design journal where you sketch ideas and reflect on what worked and what didn’t. This habit is not only assessed but also makes you a better problem solver. Be curious, ask questions, and never be afraid of making mistakes — every failure is a step towards a better design.
熟悉相关词汇：原型、规格、公差、扭矩等术语会经常出现。准备一本设计日记，在其中画出草图并反思哪些有效、哪些无效。这个习惯不仅会被评估，还能让你成为更好的问题解决者。保持好奇，勇于提问，并永远不要害怕犯错——每一次失败都是通向更好设计的一步。
With the foundation laid by this summer course, you are ready to take on the KS3 WJEC Engineering challenges with confidence, creativity, and a solid grasp of the key concepts.
有了本暑期课程打下的基础，你将带着自信、创造力和对关键概念的扎实掌握，迎接 KS3 WJEC 工程的各项挑战。
Published by TutorHao | Engineering Revision Series | aleveler.com
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