Lesson 9 — Who’s In, Who’s Out, and Why

Summary

Learners analyze how belonging draws a line between “us” and “them” — often unintentionally — and weigh loyalty to the in-group against obligation to those left outside. They meet the minimal-group finding that even arbitrary groups trigger in-group favoritism, analyze real cases of inclusion and exclusion, and argue how the line could be redrawn.

Objectives

• Weigh belonging, loyalty, and collective responsibility, analyzing who a community draws in and who it leaves out. (D02.S3.12.02)

Connection

Every “we” has an edge. A nation has a border; a club has a membership; even a friend group has an inside and an outside. Often the line is drawn without anyone deciding to be cruel — it just forms, and people on the far side of it quietly pay a cost. Research found something striking: even when people are sorted into groups by nothing — a coin flip, a made-up label — they start favoring their own group within minutes. That means the “us/them” line is not only built by bad intentions; it is built by habit. Naming the line — and who pays it — is the first step toward drawing it more fairly.

Materials

• Belonging-line organizer
• Community case cards
• Paper and pencil (low-tech)
• In-group and out-group page (enriched)

Preparation

• Copy or draw the belonging-line organizer; prepare the case cards, kept factual.
• Retrieval: from Lesson 8, the nested rings; from Grade 6 (D02.S3.06.01), how belonging can include and exclude. Today we weigh the line.
• Prepare plain definitions (model once: Kirschner, Sweller & Clark, S-011): an in-group is the “us”; an out-group is the “them.” In-group favoritism is the tendency to favor our own group even when the group is arbitrary — the minimal-group finding (Tajfel, S-232). Solidarity and collective responsibility are the question: what do I owe the people my “we” leaves out?

Facilitator note

This lesson is written to the learner (“you”). The idea to land: belonging has a line, often drawn by habit rather than malice, and maturity means seeing the line and weighing loyalty against obligation to those outside it. The minimal-group finding is real and well replicated (Tajfel, S-232); hold it as description of how minds work, not as a claim that groups are bad or that belonging is wrong. Belonging is a human good; the question is whose belonging is paid for by whose exclusion.

The ethics lens: loyalty to “us” is a real value — and so is the claim of the person standing outside the line; ethics is the weighing. The egalitarianism lens: the line is not neutral — it is drawn by the powerful and paid by the excluded; noticing who draws and who pays is the egalitarian move. The global lens: every human group draws lines differently — by kinship, language, faith, place, or state — and no single way is the default. The technology lens: online communities draw lines too — algorithmic sorting, moderation, and gatekeeping can make an “us” feel seamless while quietly excluding people whose access, language, or ability differs (World Bank digital divide, S-281; Britannica, S-481). The critical-thinking lens: ask who drew this line, when, and for what purpose before you accept it as natural. Preview: Lesson 10 turns the weighing into a decision about solidarity and the common good.

Safeguarding: cases are about groups, never a learner’s identity; no one is asked to defend exclusion of a group they or their loved ones belong to.

Procedure

1. Recall (5 min). From Lesson 8: your nested rings. Today we look at the edges of a ring — where “we” stops.
2. Meet the minimal-group finding (10 min). Work a model example (S-011): people sorted into two arbitrary groups — by a coin flip — soon favor their own group in small choices (Tajfel, S-232). Name the takeaway: the us/them line forms by habit, not only by cruelty.
3. Analyze a real line (15 min). In a group, take a case card. On the organizer, name who the community draws in, who it leaves out, and what the line costs — in dignity, access, or opportunity — and who pays it.
4. Weigh loyalty against obligation (12 min). Argue — aloud or in writing: what does this “we” owe the people outside its line — nothing, something, or a great deal? Use one example from the case, and be ready to say where the obligation ends and why.
5. Redraw the line (8 min). In your care journal, draw the line as it is, then draw it as it could be — wider, lower, or gone — and write one sentence on what the change would cost and what it would buy.
6. Close (4 min). Say (or write, sign, type, or gesture) why seeing the line is different from pretending it is not there — and which one lets you draw it more fairly.

Differentiation

• Support: Name one “we” and one person it leaves out, and one thing the “we” could do to include them.
• Extension: Investigate one real community that redrew its line (a country, a club, a platform), and write a short account of who gained and who lost.
• Communication access: Arguing from each side of the line can be spoken, written, signed, typed, gestured, or AAC; a written or signed position is complete. Learners who are non-speaking, d/Deaf, hard-of-hearing, or AAC users complete every step in their preferred mode.

Assessment

• Formative (peer + self): Can the learner name in-group/out-group and the minimal finding, analyze who a real community includes and excludes, and weigh loyalty against obligation with reasons?
• Portfolio artifact (unit): The belonging-line organizer with the redrawn line, in the care journal.

Home connection

Notice one “we” in your own life — a team, a friend group, a household — and ask who sits at its edge. Write one sentence on what you noticed and one on what could change.

Resources

• On the minimal-group finding and in-group favoritism: Tajfel (1970/1971) (S-232).
• On the digital divide and online gatekeeping: World Bank, World Development Report 2016: Digital Dividends (S-281); Encyclopaedia Britannica, “Social media” (S-481).
• On worked examples for a new analytical skill: Kirschner, Sweller & Clark (2006) (S-011); on spaced retrieval: Dunlosky et al. (2013) (S-039).