Teacher / research preview
From a Leaf to the Climate
Follow one flow of energy and carbon from sunlight, through a leaf, all the way to the world's climate and food supply.
Curriculum alignment
Austria · AHS Unterstufe (Sekundarstufe I) · Biologie und Umweltbildung
This journey supports work on these official curriculum objectives — it does not claim to fully cover them.
Understand the global carbon cycle, CO₂ input into the atmosphere, and climate change. · 4. Klasse (8. Schulstufe)
Exact wording: „Globaler Kohlenstoffkreislauf, CO₂-Eintrag in die Atmosphäre, Klimawandel“
How this official objective connects, through canonical knowledge, to what a learner actually does — each link is real data, never a coverage claim.
Canonical concept
Carbon cycle namedCarbon dioxide (CO₂) namedAtmosphere namedClimate namedGreenhouse effect requiredFossil fuels required- How each concept relates to the objective
- named — The objective's own wording names this concept.
- required — You must grasp this concept to meet the objective.
Relations & mental models
3 canonical relations connect these concepts
- Carbon dioxide (CO₂) amplifies Greenhouse effect
- Carbon dioxide (CO₂) is part of Atmosphere
- Fossil fuels causes Carbon dioxide (CO₂)
Mental models these concepts carry: Feedback loop ×3Stocks and flows ×3ConservationActivity → Observable evidence
5 activities engage these concepts
explained a relationshiptransferred a patternpredicted a relationshippredicted a what-if outcomeWhat those activities are designed to make observable — designed intent, not proof of learning.
“Greenhouse effect” and “fossil fuels” are not named verbatim in this objective, but are the mechanism required to understand it.
Provenance
- Authority
- BMBWF
- Document
- BGBl. II Nr. 1/2023
- Section
- Anlage A zu Art. 4 · Biologie und Umweltbildung · Anwendungsbereiche, 4. Klasse (S. 113)
- Version
- Stammfassung, Kundmachung 2. Jänner 2023
- School type
- AHS Unterstufe (Sekundarstufe I)
- Subject
- Biologie und Umweltbildung
- Stage
- lower-secondary
- Accessed
- 2026-09-17
✓ Source verified
Understand the structure and function of plant organs and the material transformation in photosynthesis. · 2. Klasse (6. Schulstufe)
Exact wording: „Struktur und Funktion der Pflanzenorgane, Stoffumwandlung bei der Fotosynthese“
How this official objective connects, through canonical knowledge, to what a learner actually does — each link is real data, never a coverage claim.
Canonical concept
- How each concept relates to the objective
- named — The objective's own wording names this concept.
- required — You must grasp this concept to meet the objective.
Relations & mental models
3 canonical relations connect these concepts
- Photosynthesis depends on Light (sunlight)
- Photosynthesis requires Carbon dioxide (CO₂)
- Glucose (sugar) is derived from Photosynthesis
Mental models these concepts carry: Stocks and flows ×3Energy transformation ×2Journey
Journeys that walk concepts relevant to this objective
Activity → Observable evidence
6 activities engage these concepts
identified a missing linkexplained a relationshippredicted an effectpredicted a relationshippredicted a what-if outcomeWhat those activities are designed to make observable — designed intent, not proof of learning.
Provenance
- Authority
- BMBWF
- Document
- BGBl. II Nr. 1/2023
- Section
- Anlage A zu Art. 4 · Biologie und Umweltbildung · Anwendungsbereiche, 2. Klasse (S. 112)
- Version
- Stammfassung, Kundmachung 2. Jänner 2023
- School type
- AHS Unterstufe (Sekundarstufe I)
- Subject
- Biologie und Umweltbildung
- Stage
- lower-secondary
- Accessed
- 2026-09-17
✓ Source verified
Understand that materials and energy carriers largely move through closed cycles in ecological systems, and that human activity can alter these cycles. · 1.–4. Klasse (zentrales fachliches Konzept)
Exact wording: „Lebewesen sind an Stoff- und Energieumwandlung gebunden. Organische Verbindungen werden vorwiegend von Pflanzen aufgebaut. In ökologischen Systemen durchlaufen Baustoffe und Energieträger vorwiegend geschlossene Kreisläufe. Menschliche Aktivitäten können solche Kreisläufe verändern.“
How this official objective connects, through canonical knowledge, to what a learner actually does — each link is real data, never a coverage claim.
Canonical concept
- How each concept relates to the objective
- named — The objective's own wording names this concept.
- required — You must grasp this concept to meet the objective.
- supports — Helps meet the objective, but is not strictly required.
Relations & mental models
2 canonical relations connect these concepts
- Photosynthesis is part of Carbon cycle
- Producer (autotroph) depends on Photosynthesis
Mental models these concepts carry: Stocks and flows ×3Energy transformation ×2ConservationFeedback loopNetworksJourney
Journeys that walk concepts relevant to this objective
Activity → Observable evidence
4 activities engage these concepts
identified a missing linkpredicted an effectpredicted a relationshippredicted a what-if outcomeWhat those activities are designed to make observable — designed intent, not proof of learning.
Provenance
- Authority
- BMBWF
- Document
- BGBl. II Nr. 1/2023
- Section
- Anlage A zu Art. 4 · Biologie und Umweltbildung · Zentrale fachliche Konzepte, „Stoff- und Energieumwandlung“ (S. 111)
- Version
- Stammfassung, Kundmachung 2. Jänner 2023
- School type
- AHS Unterstufe (Sekundarstufe I)
- Subject
- Biologie und Umweltbildung
- Stage
- lower-secondary
- Accessed
- 2026-09-17
✓ Source verified
Analyse ecosystems with their material and energy cycles, environmental factors and succession. · 6. Klasse · 4. Semester (Kompetenzmodul 4)
Exact wording: „Ökosysteme (Stoff- und Energiekreisläufe, Umweltfaktoren, Sukzession, Konvergenzerscheinungen)“
How this official objective connects, through canonical knowledge, to what a learner actually does — each link is real data, never a coverage claim.
Canonical concept
- How each concept relates to the objective
- named — The objective's own wording names this concept.
- supports — Helps meet the objective, but is not strictly required.
Relations & mental models
1 canonical relations connect these concepts
- Food chain depends on Producer (autotroph)
Mental models these concepts carry: Energy transformation ×2Networks ×2Stocks and flows ×2ConservationFeedback loopActivity → Observable evidence
1 activities engage these concepts
predicted a what-if outcomeWhat those activities are designed to make observable — designed intent, not proof of learning.
Provenance
- Authority
- BMBWF
- Document
- Lehrpläne AHS (RIS Gesetzesnummer 10008568, Stammfassung BGBl. Nr. 88/1985)
- Section
- Anlage A · Biologie und Umweltbildung · Oberstufe, 6. Klasse, Kompetenzmodul 4
- Version
- Bundesrecht konsolidiert, Fassung vom 2026-09-17 (zuletzt geändert BGBl. II Nr. 204/2024); Anlage A in Kraft aufsteigend ab 5. Kl. 2024
- School type
- AHS Oberstufe
- Subject
- Biologie und Umweltbildung
- Stage
- upper-secondary
- Accessed
- 2026-09-17
✓ Source verified
Understand the role of oxygen in using nutrients as energy carriers. · 3. Klasse (7. Schulstufe)
Exact wording: „Tracheen, Kiemen und Lungen als Atmungsorgane, Bedeutung des Sauerstoffs bei der Nutzung von Nährstoffen als Energieträger“
How this official objective connects, through canonical knowledge, to what a learner actually does — each link is real data, never a coverage claim.
Canonical concept
- How each concept relates to the objective
- named — The objective's own wording names this concept.
- required — You must grasp this concept to meet the objective.
Relations & mental models
1 canonical relations connect these concepts
- Cellular respiration requires Oxygen (O₂)
Mental models these concepts carry: Energy transformation ×2Stocks and flowsActivity → Observable evidence
No pilot activity yet engages these concepts directly.
The curriculum does not name “cellular respiration” verbatim; the O₂-dependent use of nutrients as energy carriers is its physiological core.
Provenance
- Authority
- BMBWF
- Document
- BGBl. II Nr. 1/2023
- Section
- Anlage A zu Art. 4 · Biologie und Umweltbildung · Anwendungsbereiche, 3. Klasse (S. 113)
- Version
- Stammfassung, Kundmachung 2. Jänner 2023
- School type
- AHS Unterstufe (Sekundarstufe I)
- Subject
- Biologie und Umweltbildung
- Stage
- lower-secondary
- Accessed
- 2026-09-17
✓ Source verified
Understand ecological relationships, biodiversity, and human influences in the context of agriculture. · 4. Klasse (8. Schulstufe)
Exact wording: „Ökologische Zusammenhänge, Biodiversität und anthropogene Einflüsse im Bereich der Landwirtschaft“
How this official objective connects, through canonical knowledge, to what a learner actually does — each link is real data, never a coverage claim.
Canonical concept
- How each concept relates to the objective
- named — The objective's own wording names this concept.
- supports — Helps meet the objective, but is not strictly required.
- context — Enrichment or framing around the objective.
Relations & mental models
1 canonical relations connect these concepts
- Climate influences Agriculture
Mental models these concepts carry: Energy transformationFeedback loopNetworksTrade-offsActivity → Observable evidence
1 activities engage these concepts
transferred a patternWhat those activities are designed to make observable — designed intent, not proof of learning.
Provenance
- Authority
- BMBWF
- Document
- BGBl. II Nr. 1/2023
- Section
- Anlage A zu Art. 4 · Biologie und Umweltbildung · Anwendungsbereiche, 4. Klasse (S. 113)
- Version
- Stammfassung, Kundmachung 2. Jänner 2023
- School type
- AHS Unterstufe (Sekundarstufe I)
- Subject
- Biologie und Umweltbildung
- Stage
- lower-secondary
- Accessed
- 2026-09-17
✓ Source verified
Evaluate environmental problems such as climate change and possible solutions within sustainable development. · 6. Klasse · 4. Semester (Kompetenzmodul 4)
Exact wording: „Umweltprobleme (zB Klimawandel) und Lösungsmöglichkeiten im Rahmen nachhaltiger Entwicklung“
How this official objective connects, through canonical knowledge, to what a learner actually does — each link is real data, never a coverage claim.
Canonical concept
- How each concept relates to the objective
- named — The objective's own wording names this concept.
- required — You must grasp this concept to meet the objective.
Relations & mental models
Mental models these concepts carry: Feedback loop ×2Stocks and flowsActivity → Observable evidence
3 activities engage these concepts
explained a relationshiptransferred a patternWhat those activities are designed to make observable — designed intent, not proof of learning.
Anlage A version; a differently-worded parallel item exists in Anlage B (sports-focused ORG).
Provenance
- Authority
- BMBWF
- Document
- Lehrpläne AHS (RIS Gesetzesnummer 10008568, Stammfassung BGBl. Nr. 88/1985)
- Section
- Anlage A · Biologie und Umweltbildung · Oberstufe, 6. Klasse, Kompetenzmodul 4
- Version
- Bundesrecht konsolidiert, Fassung vom 2026-09-17 (zuletzt geändert BGBl. II Nr. 204/2024)
- School type
- AHS Oberstufe
- Subject
- Biologie und Umweltbildung
- Stage
- upper-secondary
- Accessed
- 2026-09-17
✓ Source verified
Analyse the Earth's geo-ecosystems — explain interactions of climate, relief, soil, water and vegetation and their human transformation. · 5. Klasse (1. und 2. Semester)
Exact wording: „Geoökosysteme der Erde analysieren: Klimadaten in Diagramme umsetzen; Klimagliederungen der Erde vergleichen und hinterfragen; Wechselwirkungen von Klima, Relief, Boden, Wasser und Vegetation analysieren; Geoökosysteme und deren anthropogene Überformung erklären“
How this official objective connects, through canonical knowledge, to what a learner actually does — each link is real data, never a coverage claim.
Canonical concept
- How each concept relates to the objective
- named — The objective's own wording names this concept.
- supports — Helps meet the objective, but is not strictly required.
- context — Enrichment or framing around the objective.
Relations & mental models
Mental models these concepts carry: Feedback loop ×2ConservationStocks and flowsActivity → Observable evidence
2 activities engage these concepts
transferred a patternpredicted a what-if outcomeWhat those activities are designed to make observable — designed intent, not proof of learning.
Provenance
- Authority
- BMBWF
- Document
- Lehrpläne AHS (RIS Gesetzesnummer 10008568, Stammfassung BGBl. Nr. 88/1985)
- Section
- Anlage A · Geographie und wirtschaftliche Bildung · Oberstufe, 5. Klasse (Geoökosysteme)
- Version
- Bundesrecht konsolidiert, Fassung vom 2026-09-17 (zuletzt geändert BGBl. II Nr. 204/2024)
- School type
- AHS Oberstufe
- Subject
- Geographie und wirtschaftliche Bildung
- Stage
- upper-secondary
- Accessed
- 2026-09-17
✓ Source verified
Understand energy, energy conservation, entropy and the laws of thermodynamics, and sustainable use of energy. · 5. Klasse (1. und 2. Semester)
Exact wording: „Thermodynamik: Energie, Energieerhaltung, Teilchenmodell, Entropie, thermodynamische Hauptsätze, nachhaltiger Umgang mit Energie“
How this official objective connects, through canonical knowledge, to what a learner actually does — each link is real data, never a coverage claim.
Canonical concept
- How each concept relates to the objective
- named — The objective's own wording names this concept.
- supports — Helps meet the objective, but is not strictly required.
Relations & mental models
Mental models these concepts carry: Energy transformationStocks and flowsActivity → Observable evidence
No pilot activity yet engages these concepts directly.
Sits under the variant 'schools with more than seven weekly Physik hours in the Oberstufe'.
Provenance
- Authority
- BMBWF
- Document
- Lehrpläne AHS (RIS Gesetzesnummer 10008568, Stammfassung BGBl. Nr. 88/1985)
- Section
- Anlage A · Physik · Oberstufe, 5. Klasse (Thermodynamik)
- Version
- Bundesrecht konsolidiert, Fassung vom 2026-09-17 (zuletzt geändert BGBl. II Nr. 204/2024)
- School type
- AHS Oberstufe
- Subject
- Physik
- Stage
- upper-secondary
- Accessed
- 2026-09-17
✓ Source verified
Pilot slice: mapped to selected official objectives, not a coverage claim. Concept identity is canonical and never redefined by a curriculum.
Concepts walked (22)
Relationships walked (30)
- Agriculture depends on Photosynthesis Established
- Agriculture influences Deforestation Supported
- Agriculture trades off with Deforestation Contested
- Carbon is part of Carbon dioxide (CO₂) Established
- Chemical energy is derived from Light (sunlight) Established
- Chemical energy is part of Glucose (sugar) Established
- Climate influences Agriculture Established
- Carbon dioxide (CO₂) amplifies Greenhouse effect Established
- Carbon dioxide (CO₂) is derived from Cellular respiration Established
- Carbon dioxide (CO₂) is part of Atmosphere Established
- Deforestation amplifies Greenhouse effect Supported
- Deforestation suppresses Photosynthesis Strongly supported
- Food chain depends on Producer (autotroph) Established
- Food supply depends on Agriculture Strongly supported
- Fossil fuels causes Carbon dioxide (CO₂) Established
- Glucose (sugar) is derived from Photosynthesis Established
- Greenhouse effect influences Temperature Established
- Light (sunlight) is a Energy Established
- Oxygen (O₂) is derived from Photosynthesis Established
- Photosynthesis depends on Light (sunlight) Established
- Photosynthesis is part of Carbon cycle Established
- Photosynthesis requires Chlorophyll Established
- Photosynthesis requires Carbon dioxide (CO₂) Established
- Photosynthesis requires Water (H₂O) Established
- Producer (autotroph) depends on Photosynthesis Established
- Cellular respiration is commonly confused with Photosynthesis Established
- Cellular respiration is part of Carbon cycle Established
- Cellular respiration requires Glucose (sugar) Established
- Cellular respiration requires Oxygen (O₂) Established
- Temperature is part of Climate Established
Thinking patterns exercised (6)
Activities & expected evidence
- Identify a missing link
Sunlight ends up stored as sugar in a plant — but light and glucose are not directly connected. Which concept is the missing link that turns one into the other?
Expected evidence: identified a missing link
- Explain the mechanism
In your own words, explain HOW more carbon dioxide leads to a stronger greenhouse effect. Try to describe the mechanism, not just the fact.
Expected evidence: explained a relationship
- Predict an effect
Predict the ripple: what happens if a region gets much less sunlight for a long time?
Expected evidence: predicted an effect
- Transfer to a new field
You met a reinforcing feedback loop in climate (warming → less ice → more warming). Describe a feedback loop somewhere in economics or everyday life, and say whether it reinforces or balances.
Expected evidence: transferred a pattern
- Reflect
Reflect on what changed in your thinking.
Expected evidence: reflected