📚 Year 7 Cambridge Engineering: Summer Preview & Transition Course | 七年级剑桥工程：暑期预习与衔接课程
Moving from primary school to Year 7 brings exciting new subjects, and Cambridge Engineering stands out as a hands-on, creative discipline that blends science, maths and design. This summer preview course is designed to help you transition smoothly by introducing the key ideas, practical skills and ways of thinking you will encounter. You will explore how structures stand up, how machines multiply force and how materials can be selected for a purpose — all before stepping into the classroom.
从小学升入七年级，新科目令人期待，而剑桥工程作为一门融合科学、数学与设计的动手实践学科格外突出。这门暑期预习课程旨在帮助你顺利衔接，带你认识即将学习的关键概念、实践技能和思维方式。你将探索结构如何保持稳定、机械如何省力、材料如何按用途选择——在上课之前就开始体验工程的魅力。
1. Understanding the Cambridge Year 7 Engineering Curriculum | 理解剑桥七年级工程课程
The Cambridge Lower Secondary Engineering programme encourages you to think like an engineer: identifying problems, testing solutions and improving designs. The Year 7 curriculum typically covers fundamentals such as forces, materials, structures, simple mechanisms and the design cycle. You will learn to use tools safely, record measurements and communicate ideas through sketches and models. Assessment is often based on practical projects and written reflections rather than exams alone.
剑桥初中工程课程鼓励你像工程师一样思考：发现问题、测试方案并改进设计。七年级的教学通常涵盖力、材料、结构、简单机构以及设计循环等基础知识。你将学习安全使用工具、记录测量数据，并通过草图和模型表达想法。评估常常以实践项目和书面反思为主，而不只是纸笔考试。
Early exposure to these topics builds confidence and prepares you for the investigative nature of the subject. You are not expected to know everything in advance; the course values curiosity and resilience as much as knowledge. The summer is a perfect time to begin asking “how does that work?” and trying out simple constructions at home.
提早接触这些主题能帮助你建立信心，为这门以探究为本的学科做好准备。你并不需要提前掌握所有内容；课程看重好奇心与坚韧不亚于知识本身。暑期正是开始问“这是怎么工作的？”并在家尝试简单建造的好时机。
2. Bridging from Primary Science: Core Concepts | 从小学科学过渡：核心概念
In primary science you may have explored pushes, pulls, levers and materials. Year 7 Engineering extends these ideas by adding quantification, modelling and design constraints. For instance, you move from describing “a bigger push makes it go faster” to measuring forces in newtons and understanding equilibrium. You will also begin using diagrams with labels and simple technical vocabulary.
在小学科学中你可能探索过推、拉、杠杆和材料。七年级工程则在此基础上增加了量化、建模和设计约束。例如，你将从描述“更大的推力使物体跑得更快”过渡到用牛顿来测量力，并理解平衡的概念。你还会开始使用带标注的示意图和简单的技术词汇。
To bridge the gap, revisit some primary topics with an engineering lens: how does the shape of a tower affect its stability? Why are bridges made of different materials? Trying to build a paper bridge that holds coins is a simple but effective transition activity.
为了顺利衔接，可以用工程的视角重新审视小学课题：塔的形状如何影响其稳定性？为什么桥梁要用不同的材料？试着建造一座能承载硬币的纸桥，这是一个简单却有效的过渡活动。
Key primary concepts that lead into Year 7 Engineering include: the effect of forces, simple classification of materials (wood, metal, plastic), measurement of length and mass, and the idea of fair testing. Strengthening these foundations over the summer ensures you hit the ground running.
小学阶段与七年级工程相衔接的核心概念包括：力的作用、材料的简单分类（木材、金属、塑料）、长度与质量的测量，以及公平测试的理念。在暑期巩固这些基础能确保你顺利起步。
3. Forces and Simple Machines | 力与简单机械
Forces are pushes or pulls that can change an object’s motion, shape or direction. In engineering, we often use arrows to represent force vectors, showing both size and direction. The SI unit of force is the newton (N). A key idea is that forces come in pairs — for every action there is an equal and opposite reaction. You will also learn to calculate resultant forces when multiple forces act along the same line.
力是能改变物体运动、形状或方向的推或拉。在工程中，我们常用箭头表示力矢量，同时标明大小和方向。力的国际单位是牛顿（N）。一个重要概念是力成对出现——每个作用力都有一个大小相等、方向相反的反作用力。你还将学习如何计算在同一直线上多个力作用时的合力。
Simple machines are devices that change the size or direction of a force, making work easier. The six classical simple machines are the lever, pulley, wheel and axle, inclined plane, wedge and screw. In Year 7 you will focus especially on levers and pulleys. The mechanical advantage (MA) of a machine tells us how much it multiplies the effort force:
简单机械是能改变力的大小或方向、使做功更轻松的装置。六种经典简单机械分别是杠杆、滑轮、轮轴、斜面、楔子和螺旋。在七年级，你将重点学习杠杆和滑轮。机械的机械利益（MA）告诉我们它在多大程度上放大了作用力：
MA = Fout ÷ Fin
When using a lever, the position of the fulcrum determines whether you gain force or speed. A wheelbarrow uses a second-class lever to carry heavy loads with less effort. Being able to identify simple machines in everyday objects is a core skill.
使用杠杆时，支点的位置决定了你是获得力放大还是速度放大。手推车应用了第二类杠杆，能用较小的力气搬运重物。能够在日常物品中识别出简单机械是一项核心技能。
4. Materials and Their Properties | 材料及其性质
Engineers choose materials based on their properties, such as strength, stiffness, hardness, density, thermal conductivity and electrical conductivity. You will learn to distinguish between natural materials (wood, stone, cotton) and synthetic materials (plastics, alloys, composites) and understand why certain materials suit particular applications — for example, copper is used in electrical wiring because of its excellent conductivity.
工程师根据材料的性质来选择它们，比如强度、刚度、硬度、密度、导热性和导电性。你将学会区分天然材料（木材、石材、棉花）和合成材料（塑料、合金、复合材料），并理解为什么某些材料适合特定用途——例如，铜因其优异的导电性而被用于电线。
A simple table can help you compare common engineering materials:
一个简单的表格能帮助你比较常见的工程材料：
| Material (English) | 材料（中文） | Key Properties | 典型性质 |
|---|---|---|---|
| Mild steel | 低碳钢 | Strong, ductile, magnetic | 强度高、延性好、有磁性 |
| Aluminium | 铝 | Light, corrosion-resistant, conductive | 轻质、耐腐蚀、导电 |
| Acrylic | 亚克力 | Transparent, brittle, easy to shape | 透明、较脆、易成型 |
| Plywood | 胶合板 | Layered, resistant to splitting, versatile | 分层结构、不易开裂、用途广泛 |
You will also test materials through experiments such as stretching, bending and scratching, learning to record data and draw conclusions. Understanding material properties early helps you make informed decisions in your design projects.
你还将通过拉伸、弯曲和划痕等实验来测试材料，学习记录数据并得出结论。提早理解材料性质有助于你在设计项目中作出明智的选择。
5. Structural Design and Stability | 结构设计与稳定性
A structure must resist loads without collapsing or deforming too much. Year 7 engineering introduces the concepts of tension, compression, torsion and shear. The shape of a structure greatly affects its strength: triangles are often used in bridges and towers because they cannot easily change shape, unlike rectangles which can skew.
结构必须承受载荷而不倒塌或过度变形。七年级工程引入了拉伸、压缩、扭转和剪切等概念。结构的形状在很大程度上影响其强度：三角形常用于桥梁和塔架，因为它们不易变形，而不像矩形那样容易歪斜。
You will learn about equilibrium and centre of mass. For a structure to be stable, its line of action of weight must fall inside its base. Low centre of mass and wide base are two key rules for stability. This explains why racing cars are low and wide, and why cranes use outriggers.
你将学习平衡与质心。一个结构要保持稳定，其重力的作用线必须落在底座之内。低重心和宽底座是保持稳定的两个关键法则。这解释了为何赛车低而宽，以及起重机为何使用外伸支腿。
Experiments with spaghetti towers or card bridges allow you to apply these principles practically. Try building a tower from dry spaghetti and tape that can support a marshmallow at the top. This is a popular engineering challenge that develops understanding of bracing, joints and load distribution.
用意面塔或卡纸桥做实验，能让您实际应用这些原理。尝试用干意面和胶带建造一座能在顶部支撑棉花糖的塔。这是一项流行的工程挑战，能加深你对支撑、节点和载荷分布的理解。
6. Energy, Power and Motion | 能量、动力与运动
Energy is the capacity to do work. In Year 7 you will explore different energy forms — kinetic, potential (gravitational and elastic), thermal, sound and electrical — and see how energy transfers from one form to another in devices. The principle of conservation of energy tells us that energy cannot be created or destroyed, only converted.
能量是做功的本领。在七年级，你将探索不同形式的能量——动能、势能（重力势能和弹性势能）、热能、声能和电能——并观察能量如何在设备中从一种形式转化为另一种形式。能量守恒原理告诉我们，能量不能被创造或消灭，只能被转换。
Power is the rate of doing work, measured in watts (W). One watt equals one joule per second. While Year 7 does not require complex power calculations, you will begin to compare devices in terms of how quickly they transfer energy. For example, a motor that lifts a weight faster has a higher power output.
功率是做功的速率，以瓦特（W）为单位。1瓦特等于每秒1焦耳。虽然七年级不要求进行复杂的功率计算，但你会开始根据能量传递快慢来比较设备。例如，能够更快提起重物的电机具有更高的输出功率。
Motion is described using speed, velocity and acceleration. You will learn to calculate average speed using:
运动用速率、速度和加速度来描述。你将学习使用以下公式计算平均速率：
Average speed = total distance ÷ total time
Understanding energy and motion helps when designing anything that moves, from a simple toy car to a wind turbine. Summer activities might include measuring the speed of a rolling ball or building a rubber-band-powered vehicle.
理解能量和运动有助于设计任何会动的东西，从简单的玩具车到风力涡轮机。暑期活动可以包括测量滚球的速度或制作一辆橡皮筋动力小车。
7. The Engineering Design Process | 工程设计流程
The design process is a cycle of steps that engineers follow to solve problems. In Cambridge Year 7, you will frequently use a simplified model: Ask → Imagine → Plan → Create → Improve. This iterative approach encourages you to test prototypes, learn from failure and refine your design. Documenting each step in an engineering notebook is an important habit.
设计流程是工程师解决问题所遵循的一系列步骤。在剑桥七年级，你经常会使用一个简化模型：提问 → 设想 → 计划 → 创造 → 改进。这种迭代方法鼓励你测试原型、从失败中学习并优化设计。在工程笔记本中记录每一步是一个重要的好习惯。
You start by defining the problem and listing requirements and constraints. For example, “design a bridge that spans 30 cm and holds at least 500 g using only card and tape.” Imagining solutions involves sketching multiple ideas without judging them too early. Planning includes selecting materials, estimating quantities and drawing a to-scale diagram.
你首先要明确问题，列出要求和限制。例如，“设计一座跨度为30厘米、仅使用卡纸和胶带就能承受至少500克重量的桥梁”。设想方案时，要绘制多种想法草图，切勿过早否定。计划阶段包括选择材料、估算用量并绘制按比例缩放的图纸。
Creating a prototype, testing it, and recording observations are where the real learning happens. Improvement is based on evidence: “The bridge collapsed because the beam bent. We can add a truss under the deck.” This cycle is at the heart of engineering and is highly valued in the Cambridge curriculum.
制作原型、测试并记录观察才是真正学习的环节。改进要基于证据：“桥梁倒塌是因为梁弯曲了。我们可以在桥面下加一个桁架。”这个循环是工程学的核心，在剑桥课程中备受重视。
8. Technical Drawing and Measurement | 技术制图与测量
Being able to communicate ideas clearly on paper is essential. Year 7 introduces orthographic projection (front, side, top views) and isometric sketching. You will learn to use a ruler, set square and possibly a compass to produce neat, labelled drawings. Annotations and dimensions in millimetres complete the technical drawing.
能够在纸上清晰表达想法至关重要。七年级会引入正投影（前视图、侧视图、俯视图）和等距草图。你将学习使用直尺、三角板，可能还有圆规，来绘制整洁、带标注的图纸。标注和以毫米为单位的尺寸标注可以使你的技术图纸更完善。
Measurement skills are equally important. You will practise using rulers, calipers and protractors, reading scales accurately and understanding precision. When recording data, you will follow conventions such as including units and presenting results in clear tables. Converting between units like metres, centimetres and millimetres is a fundamental numeracy skill reinforced here.
测量技能同样重要。你将练习使用直尺、卡钳和量角器，准确读取刻度并理解精度。在记录数据时，你将遵循包括写单位在内的规范，并以清晰的表格呈现结果。在米、厘米和毫米等单位之间进行换算是这里强调的基本计算技能。
Try some summer practice: sketch a familiar object (like a phone, a block of wood or a toy) in three views. Measure its dimensions and write them on the sketch. This simple exercise builds spatial awareness and fine motor skills.
尝试在暑期练习：用三个视图画一个熟悉物体（如一部手机、一块木头或一个玩具）的草图。测量它的尺寸并标注在草图上。这个简单练习能培养空间感知能力和精细动作技能。
9. Project-Based Learning: Summer Mini-Projects | 项目式学习：暑期小项目
Nothing prepares you better for Cambridge Engineering than building real things. Summer offers the freedom to try mini-projects that reinforce the concepts you have previewed. Start with simple challenges: a foil boat that holds the most coins, a balloon-powered car, or a catapult made from lolly sticks and rubber bands.
没有什么比动手建造更能为剑桥工程做好准备了。暑期提供了自由尝试小项目的机会，以巩固你已预习的概念。从简单的挑战开始：一艘能承载最多硬币的铝箔船、一辆气球动力小车，或者一个用冰棒棍和橡皮筋制成的投石器。
Each mini-project should follow the design cycle: define what the device must do, sketch possible designs, build a prototype, test it and then improve it. Keep a simple logbook noting what worked, what broke, and why. Photographs and short videos of your tests can be fantastic additions to your early portfolio.
每个小项目都应遵循设计循环：明确装置必须做到什么、绘制几种可能的方案草图、制作原型、测试，然后改进。用简单的日志记录哪些有效、哪些损坏了及其原因。测试时的照片和短视频可以为你的初期作品集增色不少。
Collaborate with a friend or family member if possible. Explaining your ideas out loud deepens understanding, and you may pick up practical tips. Remember that engineering is rarely about getting it right the first time; it is about learning through trial, error and systematic improvement.
如有可能，与朋友或家人合作。大声说出你的想法可以加深理解，你或许还能学到实用的技巧。请记住，工程很少一次成功；其精髓在于通过尝试、错误和系统的改进来学习。
10. Preparing for a Successful Start | 为顺利开学做好准备
As the summer draws to a close, organise your toolkit — both physical and mental. For Year 7 Engineering, a basic set of drawing instruments, a notebook, safety glasses and a curious mindset are all you need. Familiarise yourself with the safety rules you will follow in the workshop, such as tying back long hair, wearing closed shoes and never using tools without permission.
暑期临近结束时，整理好你的工具包——包括实物的和心智的。对于七年级工程，一套基本的绘图工具、一本笔记本、一副护目镜和一颗好奇心就是你所需的全部。熟悉你将在工作坊遵守的安全规则，例如扎起长发、穿不露趾的鞋子、未经许可绝不擅自使用工具。
Review what you have learned over the summer: the six simple machines, the properties of materials, how to calculate mechanical advantage and the design cycle. Create a one-page visual summary with diagrams to pin on your wall. This will serve as a quick reference and boost your confidence in the first few weeks.
复习你暑期学到的内容：六种简单机械、材料性质、如何计算机械利益以及设计循环。制作一页带图画的视觉摘要，贴在墙上。这将作为快速参考，并在开学前几周增强你的信心。
Finally, embrace the maker mindset. Engineering is about turning ideas into reality, and every project, however small, builds the skills and resilience you need. Your summer preview has given you a head start — now enter Year 7 ready to create, test and innovate.
最后，请拥抱创客心态。工程就是将想法变成现实，而每个项目，无论多小，都能塑造你所需的技能和韧性。你的暑期预习已为你抢得先机——现在，带着创造、测试和创新的准备，迈进七年级吧。
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