KS3 AQA Media: Formula & Theorem Quick Reference Handbook | KS3 AQA 媒体：公式定理速查手册

📚 KS3 AQA Media: Formula & Theorem Quick Reference Handbook | KS3 AQA 媒体：公式定理速查手册

This quick reference handbook brings together the most important formulas and theorems you will encounter in Key Stage 3 Media Studies, covering media language, narrative, audience, representation, industry and digital metrics. Each entry is presented as a memorable equation or model, helping you decode and analyse media texts with confidence.

这本速查手册汇集了 KS3 媒体研究中最关键的公式和定理，涵盖媒体语言、叙事、受众、再现、产业和数字指标。每个条目都以易于记忆的等式或模型呈现，帮助你自信地解码和分析各类媒体文本。

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1. Semiotics: The Sign Formula | 符号学：符号公式

Semiotics is the study of signs. A sign is made up of two parts: the signifier (the physical form) and the signified (the mental concept). Together, they create meaning.

符号学研究符号。一个符号由两部分组成：能指（物理形式）和所指（心理概念）。两者结合产生意义。

SIGN = SIGNIFIER + SIGNIFIED → MEANING

符号 = 能指 + 所指 → 意义

For example, a red rose (signifier) can signify love or passion (signified), depending on the cultural code.

例如，一朵红玫瑰（能指）可以表示爱或激情（所指），这取决于文化符码。

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2. Narrative Structure: Todorov’s Equilibrium Theorem | 叙事结构：托多罗夫平衡定理

Todorov stated that most narratives follow a five‑step structure, moving from equilibrium to disruption and then to a new resolution. This pattern helps audiences recognise story shape.

托多罗夫指出，大多数叙事遵循五步结构，从平衡到打破再到新的解决。这个模式帮助观众识别故事形态。

EQUILIBRIUM → DISRUPTION → RECOGNITION → REPAIR → NEW EQUILIBRIUM

平衡 → 打破 → 认识 → 修复 → 新平衡

Many fairy tales and Hollywood films follow this exact sequence, making it a powerful tool for analysing plot development.

许多童话和好莱坞电影都遵循这个顺序，使其成为分析情节发展的有力工具。

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3. Character Roles: Propp’s Character Theorem | 角色功能：普罗普角色定理

Vladimir Propp identified seven recurring character roles in folk tales. This theorem can be applied to modern media texts, from movies to video games.

弗拉基米尔·普罗普在民间故事中发现了七种重复出现的角色类型。这个定理可应用于从电影到电子游戏的现代媒体文本。

• The Hero – seeks something / 英雄 – 追求目标
• The Villain – opposes the hero / 反派 – 对抗英雄
• The Donor – provides a magical object / 赠予者 – 提供宝物
• The Helper – assists the hero / 帮手 – 协助英雄
• The Princess – reward for the hero / 公主 – 给予英雄奖赏
• The Dispatcher – sends the hero on the quest / 派遣者 – 派英雄踏上征程
• The False Hero – claims reward falsely / 假英雄 – 冒领奖赏

These roles often combine, but identifying them helps reveal the underlying narrative formula.

这些角色常会合并，但识别它们有助于揭示潜在的叙事公式。

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4. Binary Oppositions: Levi‑Strauss’ Theorem | 二元对立：列维‑斯特劳斯定理

Claude Levi‑Strauss argued that meaning in media is created by opposites, such as good vs evil, rich vs poor, or nature vs technology. The contrast drives conflict and understanding.

克劳德·列维‑斯特劳斯认为，媒体中的意义是由对立产生的，比如善与恶、富与穷、自然与技术。这种对立驱动冲突并促进理解。

MEANING = CONCEPT A ↔ CONCEPT B (IN OPPOSITION)

意义 = 概念 A ↔ 概念 B（对立）

In a superhero movie, the hero and villain are binary opposites; their clash makes the narrative exciting and meaningful.

在超级英雄电影中，英雄和反派是二元对立；他们的冲突使叙事既激动人心又富有意义。

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5. Genre Formula: Codes + Conventions | 类型公式：符码 + 惯例

Every genre has a set of codes (symbols, sounds, camera work) and conventions (expected storylines, character types). When these repeat, audiences instantly recognise the genre.

每一种类型都有一套符码（象征、声音、镜头运用）和惯例（预期的情节、角色类型）。当它们重复出现时，观众立刻认出该类型。

GENRE = ICONOGRAPHY + STRUCTURE + THEME

类型 = 图像志 + 结构 + 主题

For instance, a horror genre often includes dark lighting, isolated settings, and a final girl convention – these elements add up to the formula of fear.

例如，恐怖类型通常包含昏暗的光线、孤立的环境和最终女孩的惯例——这些元素共同构成了恐惧的公式。

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6. The Representation Theorem | 再现定理

Representation is never a simple mirror of reality. Media texts select, construct and mediate versions of the world. The representation formula reminds us that meaning is built, not just reflected.

再现从来不是对现实的简单镜像。媒体文本选择、建构和中介了世界的版本。再现公式提醒我们，意义是建构出来的，而不仅仅是反映。

REPRESENTATION = REALITY + MEDIATION → CONSTRUCTED IMAGE

再现 = 现实 + 中介 → 建构形象

Stereotypes simplify this formula by reducing a group of people to a single exaggerated trait, often repeated across many texts until it feels natural.

刻板印象将这一公式简化，把一群人简化成某个被夸大的特征，在许多文本中反复出现，直到让人感觉自然而然。

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7. Audience Uses and Gratifications Formula | 受众使用与满足公式

Instead of asking what media does to audiences, this theory asks what audiences do with media. The formula breaks down audience needs into four key categories.

这一理论不问媒体对受众做了什么，而是问受众用媒体做什么。该公式将受众需求分为四个关键类别。

MEDIA USE = INFORMATION + PERSONAL IDENTITY + SOCIAL INTEGRATION + ENTERTAINMENT

媒体使用 = 信息 + 个人身份 + 社会整合 + 娱乐

For example, a teenager watching a vlog might satisfy personal identity (relating to the creator), social integration (sharing with friends) and entertainment all at once.

例如，一个青少年观看视频博客可能同时满足个人身份（与创作者产生共鸣）、社会整合（与朋友分享）和娱乐的需求。

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8. Encoding/Decoding Theorem (Hall) | 编码/解码定理（霍尔）

Stuart Hall’s theorem explains that media producers encode meanings, but audiences can decode them in different ways: dominant, negotiated or oppositional. Meaning is not fixed.

斯图尔特·霍尔的定理说明，媒体制作者编码意义，但受众可以用三种方式解码：主导式、协商式或对抗式。意义不是固定的。

PRODUCER → ENCODE → MESSAGE → DECODE → AUDIENCE (3 POSITIONS)

制作者 → 编码 → 信息 → 解码 → 受众（三种立场）

This formula explains why the same news story can be understood as fair, slightly biased or completely false by different viewers.

这个公式解释了为什么同一条新闻可以被不同观众理解为公正、略带偏见或完全虚假。

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9. Media Industry: Cost and Revenue Formulas | 媒体产业：成本与收益公式

Understanding media as an industry means looking at the numbers. These formulas help measure efficiency, profitability and audience value.

将媒体作为产业来理解意味着关注数字。这些公式有助于衡量效率、盈利能力和受众价值。

CPM (Cost Per Mille)	(Total Cost ÷ Impressions) × 1000	每千次曝光成本
Reach	Unique users who saw the content	触达人数
Circulation	Number of copies distributed	发行量

These business formulas are used by streaming services, magazines and online platforms to decide which content to produce next.

这些商业公式被流媒体服务、杂志和在线平台用来决定下一步生产什么内容。

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10. Digital Engagement Metrics | 数字参与度指标公式

On social media, success is measured by how audiences interact with posts. Engagement rate is the central formula for creators and advertisers.

在社交媒体上，成功是通过受众如何与帖子互动来衡量的。参与率是创作者和广告商的核心公式。

ENGAGEMENT RATE = (LIKES + COMMENTS + SHARES) ÷ REACH × 100%

参与率 = （点赞 + 评论 + 分享）÷ 触达人数 × 100%

A high engagement rate signals that a media text is resonating with its target audience. Platforms then boost that content further.

高参与率表明某个媒体文本与目标受众产生了共鸣。平台随后会进一步推广该内容。

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11. Advertising Effectiveness: AIDA Model | 广告效果：AIDA 模型

The AIDA model is a classic advertising theorem that describes the steps a consumer moves through when encountering an advert. It is a linear pathway from awareness to purchase.

AIDA 模型是一个经典的广告定理，描述了消费者遇到广告时经历的步骤。这是一个从注意到购买的线性路径。

ATTENTION → INTEREST → DESIRE → ACTION

注意 → 兴趣 → 欲望 → 行动

Marketers design campaigns that first grab your attention (bold headline), spark interest (relevant message), create desire (emotional appeal) and finally prompt action (buy now button).

营销人员设计的广告活动首先抓住你的注意力（醒目标题），引发兴趣（相关信息），制造欲望（情感诉求），最终促使行动（“立即购买”按钮）。

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12. Editing and Continuity Rules | 剪辑与连续性规则

Though not formulas in the mathematical sense, editing rules function as theorems that keep screen space logical. The most famous is the 180‑degree rule.

虽然剪辑规则不是数学意义上的公式，但它们作为定理保持着屏幕空间的逻辑。最著名的是 180 度规则。

180° RULE: CAMERA MUST STAY ON ONE SIDE OF THE ACTION LINE

180 度规则：摄影机必须保持在动作线的一侧

If this rule is broken, the audience becomes disoriented. Continuity editing also includes match on action, shot/reverse shot and eyeline match, all ensuring a seamless story world.

如果违反这一规则，观众会感到迷惑。连续性剪辑还包括动作匹配、正反打镜头和视线匹配，所有这些确保了无缝的故事世界。

Published by TutorHao | Media Revision Series | aleveler.com

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