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2–4 · 数据、算法与数字权力

国际文凭组织 · IB Diploma · 数字社会 · SL · 知识点 1

1.1

Data, algorithms and digital power

English

IB Diploma Programme Digital Society SL (first assessment 2024; 2021 guide). This topic equips the course's CONCEPT core (2.1-2.7: change, expression, identity, power, space, systems, values and ethics) working on the first CONTENT areas (3.1 data, 3.2 algorithms), focused through CONTEXTS into inquiry with real-world examples, as demanded by Paper 1 (40% at SL). This handout teaches the concept lenses, the data-and-algorithm content and the inquiry focus. All worked examples are original classroom cases.

Must-know for data, algorithms and digital power:

Family Content
concepts change, expression, identity, power, space, systems, values and ethics: seven lenses
data 3.1: data vs information; collection, processing, storage
algorithms 3.2: instructions, bias in, decisions out
contexts cultural, economic, environmental, health, human knowledge, political, social
inquiry concept x content x context x real-world example: the focus formula
1.2

Seven concepts as lenses

English

The course inquires through seven concepts 概念: CHANGE (evolution or transformation), EXPRESSION (who can speak, how far it travels), IDENTITY (self and group made and remade), POWER (who decides, who benefits), SPACE (place reconfigured by the digital), SYSTEMS (interlocking parts with emergent effects) and VALUES AND ETHICS (what is good, right, acceptable). A concept is a question asked of a case: the same app is a different object through POWER (whose data) and through IDENTITY (whose self-presentation).

Worked case. The school's attendance app, read four ways: CHANGE (the register moved from teacher memory to database), POWER (who may query the record), SPACE (attendance taken anywhere), VALUES AND ETHICS (locational tracking of minors).

词汇 训练
English 中文 拼音
concepts/ˈkɒnsepts/ 概念 gài niàn
1.3

Data and algorithms

English

In the content area of 3.1, data 数据 differs from information: data is the raw capture (timestamps, coordinates), information is data made meaningful (a pattern of lateness). The discipline of the content area: ask how data is COLLECTED (what the sensor can and cannot see), PROCESSED (cleaned, matched, modelled) and STORED (who holds it, how long); a dataset is an artefact with makers, not a window on the world. An algorithm 算法 (3.2) is an instruction sequence on that data: the course asks what the instructions assume (a threshold defines lateness), and what decisions flow out (the automated flag), because bias in becomes bias out.

Worked case, continued. The app's lateness rule: arrival after the second bell flags the record; the algorithm's assumption (one bell time for all bus routes) makes rural students 'late' by design: the dataset is not neutral, and the VALUES lens sees it.

词汇 训练
English 中文 拼音
data/ˈdeɪtə/ 数据 shù jù
algorithm/ˈælɡərɪθəm/ 算法 suàn fǎ
1.4

Focusing inquiry

English

Inquiry is focused with the formula CONCEPT x CONTENT x CONTEXT x real-world example 真实例证: a question worth asking (does automated attendance change the power to define lateness?), content that can answer it (data and algorithms), a context situating it (the social context of school; the economic context of transport), and a real case (the attendance app). The failure modes: the concept-only essay (no case), the case-only story (no concept), and the context dump (no digital system in view).

Worked case, concluded. Focused: POWER (concept) x ALGORITHMS (content) x SOCIAL and ECONOMIC (contexts) x the attendance app (example), answering whether automation relocates the power to define lateness from teachers to the rule's authors.

词汇 训练
English 中文 拼音
real-world example/rɪəl wɜːld eɡˈzæmpl/ 真实例证 zhēn shí lì zhèng
1.5

Checklist

English
  • The seven concepts as questions asked of cases (concepts).

  • Data vs information; collection, processing, storage; datasets have makers (data).

  • Algorithms: assumptions in, decisions out, bias through (algorithms).

  • The seven contexts situating each inquiry (contexts).

  • The focus formula applied; the three failure modes avoided (inquiry). Boundary notes: the examiner must see the inquiry working: concepts named, sources diverse and evaluated, real-world examples real. All worked examples are original classroom cases.

Additional notes PDF
English

Supported preparation: Data, decisions and accountability

Scope and prerequisites

IB digital society first assessment 2024. Integrate concepts, content and contexts. Inquiry uses a process document, recorded multimedia presentation and references; HL adds global well-being, governance/human rights and sustainable development interventions.

Mapped preparation outcomes: ib_digital_society_sl.1.1, ib_digital_society_sl.1.2. Read the matching native lesson first. Actual approved choices, evidence and final learner work remain separate.

Source vocabulary

algorithm 算法; digital footprint 数字足迹.

Explanation and worked method

Data are recorded values; information gives them contextual meaning. An algorithm maps inputs to outputs under specified rules. A prediction is not a cause. Privacy concerns collection, access, use and retention; power includes who defines the goal and who can challenge a decision.

Original classroom evidence panel for Data, decisions and accountability

Original case: a practice recommender stores missing quizzes as zero and assigns easier work. Analyse the mechanism and one remedy.

Missingness can arise from absence or failed access rather than low ability. Converting it to zero changes the inferred ability and can restrict opportunity. Distinguish missing from observed zero, investigate causes, allow correction and test outcomes across affected groups. High average accuracy does not establish equal errors.

Independent transfer

The developer proposes collecting family income to explain missing quizzes. Evaluate this response.

Attempt independently before reading the model.

Checked original model

A proposed variable needs direct relevance, school permission, data minimization and protection. Investigate connection failures and allow missing-data correction first where feasible. More sensitive data do not automatically improve fairness and may create new privacy or exclusion risks.

These are authored formative expectations, not official IB descriptors. Accept other justified arguments with evidence and material limits.

Source and task holds

This supplement teaches the method for this part of the course. The full assessment criteria and any texts your school chooses come from your teacher.

该知识点的互动课程

逐步完成,配合即时检查练习。

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