📚 Year 7 AQA Engineering: International Competition Preparation Strategy | 七年级 AQA 工程：国际竞赛备战攻略
Welcome to the exciting world of engineering competitions! For Year 7 students following the AQA engineering curriculum, taking part in an international contest is a fantastic way to apply classroom knowledge, develop teamwork, and spark creativity. Whether you dream of building robots, designing sustainable solutions, or solving real-world problems, there is a competition out there waiting for you. This guide walks you through every step of preparation, from choosing the right event and assembling a balanced team, to coding, prototyping, documenting your work and performing well on competition day.
欢迎来到激动人心的工程竞赛世界！对于学习 AQA 工程课程的七年级学生来说，参加国际性比赛是将课堂知识付诸实践的绝佳方式，既能锻炼团队合作能力，也能激发创造力。无论你是梦想制造机器人、设计可持续方案还是解决现实难题，总有一项竞赛在等着你。本攻略将带你走完备战的每一步：从挑选合适的赛事、组建能力互补的团队，到编程、制作原型、记录工程笔记，以及在比赛日稳定发挥。
1. Understanding the Competition Landscape | 认识竞赛版图
Before diving in, it helps to know the different types of engineering competitions open to Year 7 students. Some focus on robotics and coding, while others challenge you to invent a device that helps your community. Popular international options include FIRST LEGO League (FLL), the VEX IQ Challenge, the CREST Awards, and online challenges such as the micro:bit do your :bit competition. Each has unique rules, age categories, team sizes and judging criteria, so read the current season handbook carefully rather than relying on last year's version.
在开始之前，先了解一下适合七年级学生的各类工程竞赛会很有帮助。有些侧重机器人与编程，有些则要求你发明一件能帮助社区的设备。热门的国际选项包括 FIRST LEGO League（FLL）、VEX IQ Challenge、CREST Awards 以及像 micro:bit do your :bit 这样的线上挑战赛。每一项都有独特的规则、年龄分组、队伍人数和评分标准，因此务必仔细阅读本赛季的最新手册，而不是沿用去年的版本。
| Competition | Age Range | Focus | Team Size |
|---|---|---|---|
| FIRST LEGO League (FLL) | 9-16 | Robotics, research project | 2-10 |
| VEX IQ Challenge | 8-14 | Robotics, engineering design | 2-6 |
| CREST Awards (Discovery/Bronze) | 11-14 | STEM investigation, creativity | Individual or team |
| micro:bit do your :bit | 8-14 | Coding, solving global goals | 1-3 |
When choosing an event, weigh four practical factors: eligibility, cost, travel distance and the level of support your school can offer. A regional qualifier two hours away is usually a better first experience than an overseas final that requires flights and visas. Also check the registration window, because popular robotics events fill their places months in advance and late entries are rarely accepted.
选择赛事时，请权衡四个现实因素：参赛资格、费用、路程远近，以及学校能提供的支持力度。对第一次参赛来说，两小时车程内的地区预选赛，通常比需要坐飞机和办签证的海外总决赛更合适。同时要留意报名窗口，热门的机器人赛事往往提前数月就报满，迟交的报名很少被接受。
2. Assembling Your Team and Roles | 组建团队与角色分配
Most engineering competitions require teamwork, and judges reward well-organised groups. A balanced team combines different strengths: some members might love building, others enjoy coding, drawing or speaking in public. Clear roles prevent the common failure where two people build while four people watch, and they give every member something concrete to report during the judging interview.
大多数工程竞赛都需要团队合作，评委也会青睐组织良好的小组。一支均衡的队伍应组合不同的强项：有的成员喜欢动手搭建，有的擅长编程、绘图或公开表达。明确的角色可以避免"两个人干活、四个人围观"的常见问题，也能让每位成员在评审面试时都有具体的内容可以汇报。
| Role | Main Responsibility | Skill Developed |
|---|---|---|
| Builder | Assembles the physical model, maintains the robot | Mechanical reasoning, precision |
| Programmer | Writes and debugs code, tunes sensors | Computational thinking |
| Documenter | Keeps the engineering notebook and photo log | Scientific recording, literacy |
| Presenter | Delivers the pitch and answers judges' questions | Communication, confidence |
| Project manager | Tracks the timetable, keeps the team on task | Leadership, time management |
Rotate roles during practice sessions so that everyone understands what their teammates do. This makes the team far more resilient: if the programmer is ill on competition day, another member can step in. Settle disagreements with evidence rather than opinion, for example by testing two designs and comparing the measured results.
在训练阶段轮换角色，让每个人都了解队友在做什么。这会让团队抗风险能力强得多：如果比赛当天程序员生病，其他成员可以顶上。出现分歧时，用证据而不是意见来决策，例如把两种设计方案各做一次测试，比较实测数据。
3. Linking AQA Design and Technology Content to Competition Tasks | 把 AQA 设计与技术内容对接竞赛任务
The AQA key stage 3 design and technology programme of study is built around four pillars: design, make, evaluate, and technical knowledge. Competition work exercises all four at once. When you sketch a solution and write a specification, that is design. When you cut, join, solder or print a part, that is make. When you test against your criteria and reflect on failures, that is evaluate. When you explain mechanisms, structures, forces or control systems, that is technical knowledge.
AQA 第三学段（KS3）设计与技术的课程框架围绕四大支柱构建：设计、制作、评价与技术知识。竞赛任务会同时锻炼这四项能力。当你绘制方案草图并写出设计规格时，这是"设计"；当你切割、连接、焊接或打印零件时，这是"制作"；当你对照标准进行测试并反思失败原因时，这是"评价"；当你解释机构、结构、受力或控制系统时，这是"技术知识"。
Competitions also feed directly into mathematics and science lessons. Gear ratios use ratio and proportion, structural work uses forces and moments, electronics uses current and voltage, and programming uses logic and sequencing. Recording these links in your notebook is powerful evidence for teachers and, later, for GCSE Engineering or Design and Technology coursework.
竞赛还会直接反哺数学与科学课堂。齿轮比用到比与比例，结构设计用到力与力矩，电子电路用到电流与电压，编程用到逻辑与顺序。把这些学科联系写进工程笔记，既能成为给老师看的有力证据，日后也能为 GCSE 工程或设计与技术课程作业打下基础。
Another AQA theme is designing for a client or user rather than for yourself. Before you invent anything, interview someone who would actually use it, and quote their words in your notebook. "Our user said the handle hurt her hands" is far stronger evidence than "we thought it would be cool".
AQA 的另一个主题是：为使用者和客户设计，而不是为自己设计。在发明任何东西之前，先去访谈真正会使用它的人，并把他们的原话记进笔记。"我们的使用者说这个把手硌手"远比"我们觉得这样很酷"更有说服力。
4. Mastering the Engineering Design Process | 掌握工程设计流程
Every serious competition entry follows a version of the same cycle: define the problem, research the context, set criteria and constraints, generate ideas, prototype, test, and iterate. Skipping a stage almost always costs marks later, because judges can see whether your final design evolved from evidence or appeared fully formed on the last night.
每一份认真的参赛作品都遵循同一个循环的某个版本：定义问题、调研背景、确定标准与限制条件、生成方案、制作原型、测试、迭代改进。跳过任何一个阶段，几乎都会在后面丢分，因为评委能看出你的最终方案是从证据中演化而来的，还是最后一晚凭空出现的。
Criteria describe what success looks like, such as "the robot completes the course in under 60 seconds". Constraints describe the limits you cannot break, such as budget, size, weight or available materials. Write both lists before you build, then score each idea against them.
设计标准描述"成功是什么样子"，例如"机器人能在 60 秒内完成赛道"。限制条件描述不可突破的边界，例如预算、尺寸、重量或可用材料。在动手制作之前就把两份清单写下来，然后对照它们给每个想法打分。
Design score = Σ (criterion weight × idea rating)
Use a simple weighted table so that the decision is transparent. A criterion such as "must fit inside the 300 mm × 300 mm starting zone" might carry a weight of 3, while "looks attractive" measure real performance during testing and feed the numbers back into the next iteration.
使用简单的加权表，让决策过程透明可见。例如"必须能放进 300 mm × 300 mm 的出发区"这一项权重可以设为 3，而"外观好看"权重设为 1。随后在测试中测量真实表现，再把数据带入下一轮迭代。
A useful rule of thumb is the 70 per cent rule: build the simplest version that meets about 70 per cent of your criteria, test it early, and improve it repeatedly. Perfection on paper usually means no time left for testing, and untested designs fail on the day.
一条实用的经验法则是"70% 法则"：先做出能满足约 70% 标准的最简版本，尽早测试，然后反复改进。纸上完美往往意味着没有时间测试，而未经测试的设计在比赛当天极易失败。
5. Building Your Engineering Notebook | 建立你的工程笔记本
The engineering notebook is the single most underrated item in competition preparation. It is a dated, handwritten or typed record of what you tried, why you tried it, what happened, and what you changed next. Many awards, including CREST and several design prizes, are judged largely on this document rather than on the finished model.
工程笔记本是备赛中最被低估的一件"装备"。它按日期记录你尝试了什么、为什么尝试、结果如何、下一步改了什么。包括 CREST 和多个设计类奖项在内，许多奖项的评审主要依据这份文档，而不是成品本身。
- Date and time every entry, and never tear out a page. | 每条记录都写上日期与时间，绝不撕页。
- Sketch by hand first, then add CAD or photos. | 先手绘草图，再补充 CAD 图或照片。
- Record failures honestly, with the reason and the fix. | 如实记录失败，写明原因与解决方式。
- Keep a data table for every test, not just the good runs. | 每次测试都建数据表，不只记好成绩。
- Note the source of any idea you borrowed, with a link or page number. | 借鉴他人想法要标注来源，附链接或页码。
A simple test record makes your evidence much stronger. For example, "Run 3: line follower lost the black line at the second corner; battery read 6.4 V; added a third sensor and the error stopped" tells judges exactly how your team thinks.
一份简单的测试记录能让证据强得多。例如："第 3 次运行：循线机器人在第二个弯道丢失黑线；电池读数 6.4 V；加装第三个传感器后问题消失。"这能让评委清楚看到你们团队的思维方式。
If your competition uses CREST criteria, structure the notebook around them: what you aimed to find out, what you did, what you observed, and what you concluded. Keep the language precise and avoid vague words such as "better" without a measurement attached.
如果你的竞赛使用 CREST 评审标准，就按这些标准组织笔记：你想探究什么、你做了什么、你观察到什么、你得出什么结论。语言要精确，避免在没有测量数据的情况下使用"更好"这类模糊词汇。
6. Coding, Electronics and Mechanism Skills | 编程、电子与机构技能
Robotics challenges reward fluent programmers. Start with block-based coding in MakeCode for the micro:bit, then move to Python or C++ once the logic feels natural. The three skills that matter most are reading sensor values, controlling outputs with feedback, and debugging systematically rather than by random guessing.
机器人竞赛奖励编程熟练的队伍。可以先从 micro:bit 的 MakeCode 图形化编程入手，等逻辑熟练后再过渡到 Python 或 C++。最重要的三项能力是：读取传感器数值、用反馈控制输出、以及系统地调试，而不是靠瞎猜乱改。
Sensors rarely give perfect readings, so calibration matters. Record the minimum and maximum values in your real competition environment, then map them to useful thresholds. A line-following robot, for instance, needs a threshold halfway between the reading on white paper and the reading on black tape.
传感器很少给出完美读数，因此校准很关键。在真实比赛环境中记录最小值和最大值，再把它们映射到可用的阈值。例如循线机器人需要设定一个阈值，取白纸读数与黑胶带读数之间的中间值。
Threshold = (reading on white + reading on black) ÷ 2
Mechanisms obey simple mathematics. Gear trains trade speed for torque, and the ratio tells you exactly how much. If the driven gear is larger than the driver gear, the output turns more slowly but with more turning force, which is what you want for climbing a ramp or pushing an object.
机构遵循简单的数学规律。齿轮传动会以速度换取扭矩，而传动比能精确告诉你换多少。如果从动齿轮比主动齿轮大，输出转速更低但转动力更大，这正是爬坡或推物时所需要的。
Gear ratio = teeth on driven gear ÷ teeth on driver gear
Output speed = input speed ÷ gear ratio
Electronics follows Ohm's law, which links voltage, current and resistance in every circuit you build. If a motor stalls or a component heats up, measure the current before adding more power; excess current is usually the cause.
电子电路遵循欧姆定律，它把你搭建的每个电路中的电压、电流和电阻联系起来。如果电机堵转或元件发热，先测量电流再加大功率；电流过大通常是根本原因。
V = I × R
Electrical power P = V × I
Always debug in a fixed order: check the power supply, check the wiring, check the sensor readings, check the logic, then check the mechanics. Changing three things at once makes it impossible to know which change actually solved the problem.
调试一定要遵循固定顺序：检查电源、检查接线、检查传感器读数、检查程序逻辑、最后检查机械结构。同时改动三处，你就无法判断到底是哪一处解决了问题。
7. Prototyping, Materials and Safe Making | 原型制作、材料与安全操作
Prototypes should be cheap, fast and disposable. Cardboard, foam board, hot glue, tape and wooden dowels let you test an idea in twenty minutes rather than twenty hours. Once a concept survives testing, move to MDF, acrylic, aluminium extrusion or 3D-printed parts for the final version.
原型应当是便宜、快速、可丢弃的。纸板、泡沫板、热熔胶、胶带和木销可以让你在二十分钟内验证一个想法，而不是花二十个小时。等某个方案通过测试后，再改用中密度纤维板、亚克力、铝型材或 3D 打印件做最终版本。
Tolerances decide whether parts fit. A hole that measures 3.0 mm will not accept a 3.0 mm shaft comfortably; add 0.2 mm to 0.3 mm of clearance for moving parts. Measure twice, cut once, and always test-fit before gluing or screwing permanently.
公差决定了零件能否装配。标称 3.0 mm 的孔并不能轻松容纳 3.0 mm 的轴；运动部件需要预留 0.2 mm 到 0.3 mm 的间隙。量两次、切一次，并且在永久粘合或拧紧之前一定要试装。
- Wear safety goggles whenever cutting, drilling or sanding. | 切割、钻孔或打磨时务必佩戴护目镜。
- Tie back long hair and remove loose sleeves near rotating machines. | 靠近旋转机械时扎起长发、去掉宽松袖口。
- Complete a written risk assessment before using any power tool. | 使用任何电动工具前先完成书面风险评估。
- Never solder near flammable materials, and let the iron cool on its stand. | 切勿在易燃物附近焊接，烙铁要放在支架上冷却。
- Keep the workbench tidy; a clear bench is a safe bench. | 保持工作台整洁；台面清爽就是台面安全。
Cost control is part of engineering. Reuse last season's motors, brackets and cables wherever the rules allow, and keep a labelled box of spare parts so that nothing is lost between sessions.
成本控制本身就是工程的一部分。在规则允许的范围内重复使用上一赛季的电机、支架和线缆，并准备一个贴好标签的备件盒，避免零件在两次训练之间丢失。
8. The Research Project and Global Goals Theme | 研究项目与全球目标主题
Several international competitions pair a robot game with an innovation or research project. FLL, for example, asks teams to investigate a real-world problem linked to that season's theme, while the micro:bit do your :bit challenge asks entrants to design a solution connected to the United Nations Sustainable Development Goals.
多个国际赛事会把机器人比赛与创新或研究项目结合起来。例如 FLL 要求队伍调查与当季主题相关的现实问题，而 micro:bit do your :bit 挑战赛则要求参赛者设计出与联合国可持续发展目标相关的解决方案。
Strong research projects follow a clear structure. First, define the problem with statistics or first-hand evidence. Second, explain who is affected and why existing solutions fall short. Third, present your proposed solution and how it works. Fourth, explain how you shared your idea with the community. Fifth, reflect on what you would improve next.
优秀的研究项目遵循清晰的结构。第一，用统计数据或一手证据定义问题。第二，说明谁受到影响，以及现有方案为何不足。第三，展示你的解决方案及其工作原理。第四，说明你如何把想法分享给社区。第五，反思下一次会如何改进。
Cite your sources properly. A short reference list with author, title and year looks professional and lets judges verify your claims. Avoid copying paragraphs from websites; paraphrase in your own words and add a link to the original.
正确标注来源。一份包含作者、标题和年份的简短参考文献列表会让作品显得专业，也让评委能够核实你的说法。不要直接复制网站段落；用自己的话转述，并附上原文链接。
The best projects are local and specific. "Designing a flood-warning app for our village, because the river rose 40 cm above the bridge last autumn" is far more convincing than a broad discussion of climate change. Specificity shows genuine understanding and produces a memorable presentation.
最好的项目往往具体而本地化。"为我们的村庄设计洪水预警应用，因为去年秋天河水漫过桥面 40 厘米"远比泛泛而谈气候变化更有说服力。具体性体现真实的理解，也能带来令人印象深刻的展示。
9. Presentation, Judging and Core Values | 展示、评审与核心价值观
Judging is not only about the machine. Panels assess teamwork, problem-solving, professionalism and how well you communicate. FLL calls this set of expectations core values, and the same spirit appears in most competitions: compete hard, but help other teams when they need a hand.
评审不只看机器本身。评委关注团队合作、问题解决能力、专业素养以及你的沟通过程。FLL 把这套期望称为"核心价值观"，而大多数竞赛也有类似精神：全力竞争，但当其他队伍需要帮助时伸出援手。
Prepare a two-minute pitch that covers the problem, your solution, one piece of test evidence, and what you learned. Rehearse it aloud at least ten times and time it, because a pitch that runs to three minutes gets cut off and loses its conclusion.
准备一段两分钟的陈述，涵盖问题、你的方案、一项测试证据以及你的收获。至少大声排练十次并计时，因为超时到三分钟的陈述会被打断，结论部分就丢了。
| Judging Area | What Judges Look For | Preparation Tip |
|---|---|---|
| Robot performance | Reliable, consistent runs | Practise 20+ full runs |
| Design process | Iteration backed by evidence | Show dated notebook pages |
| Core values | Respect, inclusion, fairness | Let every member speak |
| Innovation project | Real research, real impact | Bring quotes from users |
Answer questions honestly. If you do not know something, say "we tested that and it did not work well, so our next step would be to try a lighter material". Judges respect a team that understands its own limits far more than one that invents an answer.
回答问题时保持诚实。如果不知道，就说"我们测试过，效果不好，所以下一步我们想试试更轻的材料"。评委更欣赏清楚自身局限的队伍，而不是编造答案的队伍。
10. A Twelve-Week Training Schedule | 十二周训练时间表
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