Grade 7 Spring — The Early-Modern World c. 1450-1750 CE in Six Simultaneous Formations: Italian + Northern Renaissance, the Reformation and Wars of Religion, the Scientific Revolution, the Age of Exploration with Zheng He Precedence and Multi-Perspective Encounter, the Conquest of Mexica and Inca from Indigenous Perspectives, Ongoing Indigenous Resistance through Pueblo Revolt 1680 and Itzá Maya 1697, the Atlantic Slave Trade Origins with African Voices Centered, the Mughal Empire (KS3 Non-European Society Study), Ming/Qing China with Zheng He 1405-1433, Tokugawa Japan, and the Ottoman Empire — Whose Renaissance? Whose Discovery? Whose Conquest?

Lesson 11 60 min hist.g7.s.lesson_11

Encounter 1492+ and the Columbian Exchange — Biological, Demographic, Cultural Transformation; ~90% Indigenous Mortality 1492-1600 + Conquest of Mexica BEGINS (trauma-informed)

Skills targeted

Objectives

Students explain the Columbian Exchange (biological + demographic + cultural + ecological) using MG-15 + MG-16; name 4 American-to-Eurasia + 4 Eurasia-to-American biological flows + the disease asymmetry causing ~90% Indigenous mortality 1492-1600.
Students BEGIN analysis of Spanish conquest of Mexica 1519-1521 from MEXICA-FIRST perspective — locate Tenochtitlán c.1500 as ~200,000-person city; name Moctezuma II + La Malinche/Malintzin + Cortés + 200,000+ Tlaxcalan allies; encounter Restall 2003 SEVEN MYTHS poster MG-14 for the first time.

Vocabulary

Columbian Exchangeencomiendamit'adisease asymmetrysmallpoxmeaslesIndigenous (present-tense)MexicaTenochtitlánMoctezuma IILa Malinche/Malintzin TenepalHernán CortésTlaxcalanRestall SEVEN MYTHSNMAI present-tense

Lesson plan

Warm-up

5 min

TRAUMA-INFORMED PROTOCOL ACTIVE — display MG-15 protocol checklist + caregiver-letter announcement. Open with MG-9 Living-Descendant Promise — name present-tense Nahua-speaking communities (1.7M+ Nahuatl speakers in contemporary Mexico). Then introduce the encounter via Florentine Codex Book 12 illustrated folio.

Teacher moves

Display MG-15 trauma-informed protocol
Open with present-tense Nahua naming
Introduce MG-14 SEVEN MYTHS poster

Direct instruction

15 min

TRAUMA-INFORMED LESSON. The Encounter 1492+ initiates the Columbian Exchange — biological + demographic + cultural + ecological transformation. NAME RESILIENCE FIRST per MG-11: Indigenous peoples have ongoing present-tense political/cultural/linguistic life; ~64M Indigenous peoples in Americas today. AND name what happened: ~90% mortality 1492-1600 from smallpox + measles + influenza + typhus + yellow fever + violence + forced labor + ecological disruption per Crosby 1972 + Cook 1998 + Mann 2005 + Earle 2012. MG-15 COLUMBIAN EXCHANGE: American → Afro-Eurasia: maize, potato, sweet potato, tomato, cacao, turkey, tobacco, cassava, peanut, pumpkin, squash, vanilla, pineapple, avocado, chili pepper, quinoa. Afro-Eurasia → Americas: wheat, horse, cattle, pig, sheep, goat, chicken, sugarcane, coffee, banana, citrus, onion, garlic, grapes, olives. DISEASE asymmetric: smallpox + measles + influenza + typhus + yellow fever (Afro-Eurasia→Americas, devastating); syphilis (debated origin). Beginning Mexica conquest via Florentine Codex Book 12 — INDIGENOUS-VOICED account. Tenochtitlán 1500: ~200,000 people, larger than London/Paris; built on Lake Texcoco; chinampa agriculture; sacred precinct with Templo Mayor; Aztec Triple Alliance (Tenochtitlán + Texcoco + Tlacopan). 8 November 1519 encounter: Moctezuma II receives Cortés at causeway entrance. Restall 2018 refutes 'speechless awe at white gods' framing — Moctezuma's diplomatic response was strategic. La Malinche (Malintzin Tenepal) — Nahua woman from Coatzacoalcos, trilingual Nahuatl-Maya-Spanish, enslaved as girl by Tabascans then given to Cortés 1519 — Townsend 2006 names her STRATEGIC POLITICAL ACTOR not 'traitor'. Tlaxcalan alliance — Tlaxcala was independent Nahua city-state at war with Mexica; allied with Cortés 1519 — providing 200,000+ Indigenous co-belligerents (refuting 'tiny band of Spaniards' myth).

Key examples

Apply MG-7 Q1 SOURCING (Tlatelolco Nahua scholars) + Q3 CORROBORATION (Cortés agrees on events, not framing) + Q8 ENCOUNTER MULTI-PERSPECTIVE (Nahua scholars NAMING THEMSELVES — Indigenous voice).

model The Florentine Codex Book 12 — co-authored by Sahagún with Antonio Valeriano + Alonso Vegerano + Martín Jacobita + Pedro de San Buenaventura + Andrés Leonardo at Colegio de Santa Cruz Tlatelolco — records La Noche Triste from Mexica perspective: massive Mexica counterattack after Toxcatl massacre + Spanish flight from Tenochtitlán across causeways + heavy Spanish losses (~600 of ~1,300 + many Tlaxcalan allies + much treasure lost). Shows Mexica strength + resilience + tactical success — refuting 'inevitable defeat' framing.

prompt Read Florentine Codex Book 12 Chapter 20 (La Noche Triste 30 June 1520) from Nahua perspective. What does this account show?
Apply MG-13 Decolonial Toolkit: name coloniality alongside modernity. Both flows AND asymmetric transformation are true. Center the asymmetry per MG-13a.

model Cultural: forced Christianization + Nahuatl-Latin alphabet adoption + bilingual codices + Indigenous syncretism (Virgin of Guadalupe 1531 layered on Nahua deity Tonantzin); Indigenous languages transformed alongside survival. Ecological: deforestation; cattle/sheep/pigs as ecological agents transforming Indigenous agricultural systems; sugar plantations + silver mining transformed regional ecologies. Demographic: ~25M central Mexican 1519 → ~1M 1600.

prompt Why does the Columbian Exchange include cultural and ecological dimensions, not just biological?

Checks for understanding

Name 4 American-to-Eurasia + 4 Eurasia-to-American biological flows.
What was Tenochtitlán's population c.1500?
Who is Malintzin per Townsend 2006?

Media


        M-7-S-HIS-11-A

Diagram

24x36 inch wall poster MG-15 showing two-way biological + cultural + ecological flows 1492-1600+. American → Afro-Eurasia: maize/potato/sweet potato/tomato/cacao/turkey/tobacco/cassava/peanut/pumpkin/squash/vanilla/pineapple/avocado/chili pepper/quinoa. Afro-Eurasia → Americas: wheat/horse/cattle/pig/sheep/goat/chicken/sugarcane/coffee/banana/citrus/onion/garlic/grapes/olives. DISEASE flow asymmetric.


        MG-15

Diagram

COLUMBIAN EXCHANGE diagram — 24x36 inch wall poster showing two-way biological + cultural + ecological flows 1492-1600+. American → Afro-Eurasia: maize/potato/sweet potato/tomato/cacao/turkey/tobacco/cassava/peanut/pumpkin/squash/vanilla/pineapple/avocado/chili pepper/quinoa. Afro-Eurasia → Americas: wheat/horse/cattle/pig/sheep/goat/chicken/sugarcane/coffee/banana/citrus/onion/garlic/grapes/olives. DISEASE flow: smallpox + measles + influenza + typhus + yellow fever (Afro-Eurasia → Americas, devastating); syphilis (debated origin, Americas → Afro-Eurasia). Style: clear visual flow with food + animal silhouettes; named by scientific + Indigenous + European common names where applicable.


        M-7-S-HIS-11-B

Chart

18x24 inch chart MG-16 showing population per Cook 1998 + Mann 2005 + Crosby 1972: Pre-1492 ~60-112M; 1600 ~6-10M; ~90% mortality. Regional: Central Mexico 25M→1M; Inca region 12M→1.5M. Trauma-informed framing.


        MG-16

Chart

INDIGENOUS DEMOGRAPHIC TRANSFORMATION graph 1492-1600 — 18x24 inch chart showing population data per Cook 1998 + Mann 2005 + Crosby 1972: Pre-1492 Americas total ~60-112 million (with uncertainty bars); 1600 Americas total ~6-10 million; ~90% mortality 1492-1600. Regional breakdowns: Central Mexico 25M (1519) → 1M (1600); Inca region 12M (1525) → 1.5M (1600). Disease + violence + forced labor + ecological disruption named as compounding factors. Note clearly: this is ABOUT humans, with care and gravity; trauma-informed framing per MG-15 protocol.

Guided practice

12 min

Tasks

Pairs: use MG-15 + MG-16 diagrams; chart 4 biological flows + 4 demographic-impact lines; apply MG-13 Decolonial Toolkit to one flow.

scaffold MG-15 + MG-16 reverse with flow-chart template.
Source-card practice: apply MG-7 Q1 + Q5 NMAI + Q8 ENCOUNTER to Florentine Codex Book 12 Chapter 20 (La Noche Triste).

scaffold MG-7 sentence frames + chapter excerpt highlighted.

Media


        M-7-S-HIS-11-C

Illustration

High-resolution reproduction of Florentine Codex Book 12 (Conquest) illustrated folio depicting Mexica perspective with Nahuatl + Spanish text columns; Sahagún + Tlatelolco Nahua scholars (Valeriano, Vegerano, Jacobita, San Buenaventura, Leonardo) named as co-authors; Biblioteca Medicea Laurenziana Florence Med. Palat. 218-220; UNESCO Memory of the World 2015.

Independent practice

13 min

Media


        M-7-S-HIS-11-D

Diagram

24x36 inch laminated MG-14 naming all 7 myths of Spanish Conquest per Restall 2003 — students review for first time today, deepen in Lesson 12.


        MG-14

Diagram

RESTALL SEVEN MYTHS poster — 24x36 inch laminated naming all 7 myths of the Spanish Conquest per Restall 2003 with named scholarly refutations: (1) Myth of exceptional men — refuted by collective politics; (2) Myth of the king's army — refuted by private contracts; (3) Myth of the white conquistadors — refuted by Black + Indigenous + mestizo participants; (4) Myth of completion — refuted by ongoing resistance Pueblo 1680/Itzá 1697/Tupac Amaru II 1780; (5) Myth of (mis)communication — refuted by Townsend on Malintzin; (6) Myth of native desolation — refuted by population continuity and resilience; (7) Myth of superiority — refuted by smallpox + alliance + Indigenous tactics. Each myth shows refusal sentence frames.

Formative assessment

5 min

Exit ticket

Name 3 American-to-Eurasia + 3 Eurasia-to-American biological flows.
Who co-authored the Florentine Codex with Sahagún?
Sticky to MG-23 about Indigenous voices.

scoring 4 correct = mastery snapshot; 2-3 = practicing; 0-1 = reteach (consider MG-15 alternative)

Closure

5 min

Moves

Recite FIVE PROMISES with emphasis on MG-11 + MG-13a
Compassion Circle close — one word check-in
Preview Lesson 12

Homework

15 min

Tasks

Reflective journal entry: 'What does the present-tense protocol ask me to do?' (alternative to standard hw if needed per MG-15)

Exercises in this lesson

hist.g7.s.ex_25 Sort these 10 items into Columbian Exchange flows: maize, wheat, potato, horse, tomato, cattle, cacao, smallpox, turkey, sugar....	sort · diff 2
hist.g7.s.ex_26 Use MG-16 + math.g7.s.rp proportional reasoning: Pre-1519 central Mexico ~25 million; 1600 ~1 million. Calculate the mortality...	calculation · diff 3
hist.g7.s.ex_27 Apply MG-7 Q1 SOURCING + Q5 NMAI + Q8 ENCOUNTER MULTI-PERSPECTIVE to Florentine Codex Book 12 Chapter 20 (La Noche Triste). Who...	source analysis · diff 4
hist.g7.s.ex_28 Write a 200-word claim-evidence-warrant essay 'Why does the term ENCOUNTER replace DISCOVERY?' Apply MG-13 Decolonial Toolkit + MG-13a...	claim evidence warrant · diff 4

Differentiation

Scaffolds

MG-15 trauma-informed protocol checklist
Alternative-assignment options
Florentine Codex pronunciation guide for Nahuatl names
Caregiver letter sent Week 11

Extensions

High-ceiling: 300-word essay 'Why does the Florentine Codex matter as primary source?'
High-ceiling: research one Nahua scholar (Valeriano, Tezozómoc, Chimalpahin)

English Learners

Bilingual Nahuatl-Spanish-English glossary
Audio Florentine Codex Book 12 passages
Pronunciation guide

Ieps 504s

Alternative assignment: MG-15 biological-flows chart instead of source-card
Audio + visual versions
Extended time

Teacher notes

TRAUMA-INFORMED PROTOCOL ACTIVE. Open with present-tense Nahua naming. Caregiver letter to be sent week 11. Alternative assignment available per MG-15. The Florentine Codex is critical primary source — conquest's Indigenous-voiced account. Watch for student distress. Use Compassion Circle close.