Year 10 CAIE Computer Science: A Parent’s Guide to Home Support | 十年级CAIE计算机科学：家长辅导指南

📚 Year 10 CAIE Computer Science: A Parent’s Guide to Home Support | 十年级CAIE计算机科学：家长辅导指南

This guide is written specifically for parents of Year 10 students tackling the CAIE IGCSE Computer Science course (typically syllabus code 0478). You do not need to be a tech expert to support your child effectively. With some understanding of the key topics and a few practical activities, you can help build confidence, reinforce concepts, and make revision time more productive.

这本指南专为十年级学生的家长而作，辅导的是CAIE IGCSE计算机科学课程（常见考纲代码0478）。您无需成为技术专家就能有效帮助孩子。通过了解核心主题并开展一些动手活动，您可以协助建立信心、巩固概念，让复习时间更加高效。

1. Understanding the CAIE Computer Science Syllabus | 了解CAIE计算机科学课程大纲

The CAIE IGCSE Computer Science assessment consists of two papers: Paper 1 (Computer Systems) tests theoretical knowledge of hardware, software, networks, and data representation, while Paper 2 (Algorithms, Programming and Logic) requires problem-solving skills using pseudocode, flowcharts and programming concepts. Understanding which topics fall under each paper helps you prioritise revision.

CAIE IGCSE计算机科学的评估由两份试卷组成：试卷一（计算机系统）考查硬件、软件、网络与数据表示等理论知识，试卷二（算法、编程与逻辑）则要求运用伪代码、流程图和编程概念解决问题的能力。了解各试卷的涵盖范围能帮助您和孩子有主次地安排复习。

You can download the official syllabus from the Cambridge International website. It contains a detailed list of all topics, command words used in exam questions (e.g., ‘state’, ‘describe’, ‘explain’), and suggested practical activities. Familiarise yourself with these keywords so you can ask your child targeted questions during study sessions.

您可以从剑桥国际官网下载官方考纲，其中列出了所有主题的详细清单、试卷中常用的指令词（如“说明”、“描述”、“解释”）以及建议的动手活动。熟悉这些关键词后，就能在学习过程中向孩子提出有针对性的问题。

2. Data Representation: Making Sense of Binary and Hex | 数据表示：理解二进制与十六进制

Encourage your child to see binary numbers as a game of place values. Each bit represents a power of 2, starting from 2⁰ on the right. You can use index cards with values 128, 64, 32, 16, 8, 4, 2, 1 and ask, “If I want to store the number 75, which cards should I turn face up?” This turns abstract conversion into a tactile exercise.

鼓励孩子把二进制数看作位值游戏。每个比特位代表2的幂次，从右端2⁰开始。您可以用标有128、64、32、16、8、4、2、1的卡片，问“如果我想存储数字75，应该将哪些卡片正面朝上？”这样就把抽象的转换变成触觉练习。

1011₂ = 1×2³ + 0×2² + 1×2¹ + 1×2⁰ = 8+0+2+1 = 11

Hexadecimal is a shorthand for binary and is commonly used in colour codes (e.g., #FF0000 for red). Show your child how two hex digits can represent 8 bits, making long binary strings more manageable. Use a simple RGB colour picker online to demonstrate the relationship between hex values and colours. This real-world link often sparks interest.

十六进制是二进制的一种简写形式，常用于颜色代码（如#FF0000表示红色）。向孩子展示两个十六进制数字如何代表八位二进制，使冗长的二进制串更易管理。使用在线RGB颜色选择器演示十六进制值与颜色的对应关系，这种实际联系常能激发兴趣。

3. Computer Hardware: CPU, Memory and Storage | 计算机硬件：处理器、内存与存储器

The CPU repeatedly fetches an instruction from memory, decodes what it means, and then executes it. You can compare this to a cook following a recipe: fetch the next step, decode the instruction, and carry it out. Ask your child to explain the roles of the control unit, ALU, and registers within this cycle.

CPU会不断从内存中取指令、译码并执行，这一过程可以比作厨师按食谱做菜：读取下一步、理解其含义，然后动手操作。可让孩子解释控制单元、算术逻辑单元和寄存器在这个周期中的角色。

A common misconception is confusing RAM and storage. RAM is temporary, volatile memory that holds data and programs currently in

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