📚 Key Points for Experimental/Practical Assessment in Year 7 WJEC Engineering | 七年级 WJEC 工程实验/实践考核要点
In Year 7 WJEC Engineering, practical assessments are designed to evaluate your ability to apply engineering concepts through hands-on activities. These tasks test your skills in planning, making, testing, and evaluating solutions. Understanding the key points will help you perform confidently and achieve high marks.
在七年级 WJEC 工程课程中，实践考核旨在通过动手活动评估你运用工程概念的能力。这些任务将考验你在规划、制作、测试和评估解决方案方面的技能。理解这些考核要点将帮助你自信地完成操作并取得高分。
1. Understand the Assessment Criteria | 理解评估标准
In every practical task, your work is marked against specific criteria. These may include planning, generating ideas, making the product, testing its performance, and evaluating the outcome. Knowing what examiners look for allows you to focus on the right skills.
在每一项实践任务中，你的作品都会依据特定标准进行评分。这些标准可能包括规划、构思方案、制作产品、测试性能以及评估结果。了解考官的评分重点可以帮助你专注于正确的技能。
Typical assessment strands are shown below:
| Assessment Strand | What It Covers |
|---|---|
| Design & Planning | Clear sketches, specifications, lists of materials and tools |
| Practical Making | Safe use of tools, accuracy of measurements, quality of finish |
| Testing & Evaluation | Measuring performance, recording data, suggesting improvements |
典型的评估方面包括：设计规划（清晰的草图、规格、材料和工具清单）、实践制作（安全使用工具、测量精度、成品质量）以及测试与评估（性能测量、记录数据、提出改进建议）。
2. Prioritise Health and Safety | 将健康与安全放在首位
Safety is the foundation of any engineering workshop. Always wear appropriate personal protective equipment (PPE) such as safety goggles, aprons, and closed-toe shoes. Follow instructions when using tools like saws, drills, or soldering irons.
安全是一切工程操作的基石。务必穿戴合适的个人防护装备（PPE），如护目镜、围裙和包头鞋。使用锯子、钻头或烙铁等工具时，必须遵守操作说明。
Key safety rules include:
- Wear goggles when cutting, drilling, or using chemicals.
- Tie back long hair and secure loose clothing.
- Keep your work area clean and free of clutter.
- Report any damaged tools or spills to the teacher immediately.
- Never run or fool around in the workshop.
关键安全规则包括：
- 切割、钻孔或使用化学品时佩戴护目镜。
- 将长发束起并扎紧宽松的衣物。
- 保持工作区域整洁，没有杂物。
- 立即向老师报告任何损坏的工具或泄漏物。
- 切勿在操作车间内奔跑或嬉戏。
3. Use Tools and Equipment Correctly | 正确使用工具和设备
You will be assessed on your ability to select and use tools safely and effectively. This includes measuring tools like rulers and calipers, cutting tools like coping saws, and joining tools like glue guns. Always use the right tool for the job and return it to its place after use.
你将接受是否能安全有效选择并使用工具的评估。这包括直尺、卡钳等测量工具，线锯等切割工具，以及热胶枪等连接工具。务必选用合适的工具进行作业，并在使用后归还原位。
Practise using a try square to mark perpendicular lines and a bench hook to hold wood safely while sawing. Understanding tool maintenance, such as cleaning a file with a file card, also shows responsibility.
练习使用直角尺标记垂直线，以及使用台钳钩在锯切时安全固定木材。理解工具维护，例如用钢丝刷清理锉刀，也能体现你的责任心。
4. Follow Instructions and Read Drawings | 遵循指导并阅读图纸
Many practical challenges come with a brief or technical drawing. You need to interpret dimensions, symbols, and assembly steps. Look carefully at the scale, views (plan, front, side), and any notes about materials or finishes.
许多实践挑战都附有任务简述或技术图纸。你需要解读尺寸、符号和装配步骤。仔细查看比例、视图（俯视、正视、侧视）以及有关材料或表面处理的注释。
If a drawing shows a hole with a diameter of 6 mm, make sure you drill a 6 mm hole, not a 5 mm one. Ask questions if something is unclear before you start cutting or joining — it saves time and materials.
如果图纸显示一个直径为 6 毫米的孔，就要确保钻出的是 6 毫米孔，而不是 5 毫米。在开始切割或连接之前，如果有不明确之处要及时提问——这既节省时间又节省材料。
5. Measure and Record Data Accurately | 准确测量和记录数据
Accurate measurement is crucial in engineering. Use the correct units (mm, cm, m, g, N, etc.) and record readings clearly in a table. When testing a model bridge or a simple circuit, note down forces, distances, or voltages.
精确测量在工程中至关重要。使用正确的单位（毫米、厘米、米、克、牛顿等）并将读数清晰地记录在表格中。当测试模型桥或简单电路时，记录力、距离或电压等数据。
For example, if testing a paper bridge, you might record the mass (in grams) it can hold before failure. Always measure twice before cutting — it reduces waste and improves accuracy.
例如，测试纸桥时，可以记录其失效前能承受的质量（克）。切割前务必测量两次——这能减少浪费并提高精度。
Use a ruler with clear millimetre markings, and if you need to measure the diameter of a rod, employ calipers. Record results in a neat results table with headings and units.
使用刻度清晰到毫米的直尺，如果需要测量杆的直径，则使用卡钳。将结果整洁地记录在带有表头和单位的结果表格中。
6. Choose Materials Wisely | 合理选择材料
Material selection affects performance. You might be asked to explain why you chose cardboard over wood, or copper wire over aluminium based on properties such as strength, weight, conductivity, or cost.
材料的选择会影响性能。你可能会被要求解释为什么选择纸板而非木材，或者选择铜线而非铝线，这基于强度、重量、导电性或成本等特性。
In a model vehicle project, using lightweight foam board might make it faster but less strong. Being able to justify your choices using terms like 'rigid', 'flexible', 'conductor', or 'insulator' will earn higher marks.
在模型车项目中，使用轻质的泡沫板可能让它更快，但强度会降低。能够使用诸如“刚性”、“柔性”、“导体”或“绝缘体”等术语来证明你的选择，会赢得更高的分数。
7. Demonstrate the Design Process | 展示设计流程
Published by TutorHao | Year 7 工程 Revision Series | aleveler.com
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