The Once-ler’s Choices

Overview

In this fourth lesson of Auckland: A Sustainable New Home, students use a sequence from The Lorax to explore how individual and collective decisions can create environmental and social consequences. They build on earlier learning about Auckland’s urban challenges by analysing cause and effect, then apply the same thinking to decisions about a sustainable new home.

Learning intentions

• WALT explain how decisions create environmental and social consequences.
• WALT sequence the Once-ler’s choices and connect cause and effect.
• WALT use evidence from a visual text to explain change over time.
• WALT communicate ideas clearly when speaking and writing, using linking words.

Success criteria

• I can sequence the Once-ler’s key choices accurately.
• I can explain what caused each consequence.
• I can use because, therefore and as a result in my explanations.
• I can contribute an idea and respond respectfully to another perspective.

Curriculum links

• Year 9 Geography — Urban Challenges: applying geographical data and evaluating approaches to improve urban areas.
• Years 9–10 Social Sciences: analysing sources, making decisions and evaluating significant challenges.
• Years 9–10 Social Sciences: examining inequality, ethics and power in changing societies.
• Years 7–8 Social Sciences progression: using sources to examine perspectives, analyse responses and communicate understanding.

Lesson structure (70 minutes)

1. 0–7 min · Hook and connect. Teacher opens with the opening visual and provocative question and asks, “When can a decision that seems successful become harmful?” Students complete a quick think-pair-share, then connect the question to Auckland decisions such as housing, transport or green space.

2. 7–17 min · Establish the context. Teacher briefly explains that the Once-ler’s business decisions change the environment and affect other living things and people; show a short, school-approved film extract or still images using the Once-ler sequence and context slides. Students listen, identify the decisions they notice, and record one environmental and one social consequence on the cause-and-effect investigation sheet.

3. 17–30 min · Model cause and effect. Teacher models one example on the board: “The Once-ler cuts down trees because he wants to expand production; therefore, fewer trees remain; as a result, the environment and local inhabitants are affected.” Think aloud about evidence, sequence and the difference between a choice and a consequence. Students help complete a second example orally, using the sentence frames on the modelling and language-support slides.

4. 30–48 min · Collaborative sequencing. Teacher places students in six groups of five and gives each group a set of teacher-prepared event cards showing the Once-ler’s choices and consequences. Display the task instructions and vocabulary support in the group-task instruction slide. Students sequence the events, discuss cause and effect, and rehearse explanations using because, therefore and as a result. A speaker from each group explains one link while others check the order and reasoning.

5. 48–62 min · Individual cause-and-effect chain. Teacher asks students to complete the full chain independently on the cause-and-effect chain section, circulating to question thinking: “What evidence shows this choice?” and “Who or what is affected?” Students write a connected explanation of at least four stages. Early finishers evaluate one choice from the perspectives of the Once-ler, the Lorax, local workers and affected communities.

6. 62–70 min · Share and exit check. Teacher displays the final prompt through the discussion and plenary slides: “Which choice had the greatest consequences, and why?” Students share with a partner, then complete an exit response: “The Once-ler’s choice to ___ caused ___ because ___; therefore ___.” Invite two contrasting responses to close.

Resources

• the Once-ler choices slide deck
• the cause-and-effect investigation sheet
• Teacher-prepared sequence cards with choices and consequences
• School-approved The Lorax film extract or still images
• Projector or interactive display
• Whiteboard and coloured markers
• Highlighters or coloured pencils
• Word bank: choice, consequence, environment, community, resource, production, affected, sustainable

Assessment

• Listen for accurate sequencing and causal language during group discussion; note students who describe events but do not explain relationships.
• Check worksheet chains for chronological order, environmental and social consequences, and correct use of because, therefore and as a result.
• Use the exit response to identify who can explain a decision with evidence and who needs further modelling in the next lesson.

Differentiation

• Provide event cards with colour or picture cues, manipulatives, a numbered chain template and a bilingual or illustrated word bank. Read key instructions aloud and check understanding before group work.
• Support ELLPs writing and speaking through sentence frames: “The Once-ler chose to ___ because ___”; “As a result, ___ was affected”; “I agree/disagree because ___.” Allow students to rehearse orally before writing.
• Pair students strategically and assign supportive roles such as reader, organiser, evidence finder, language monitor and speaker. Accept labelled diagrams or oral recording before students develop a written paragraph.
• For Pasefika and Bengali learners, invite connections to collective responsibility, whenua/place, family wellbeing and community decision-making without assuming a single cultural viewpoint. Clarify idioms and pre-teach unfamiliar vocabulary.
• Extend advanced learners by evaluating the choices from different stakeholder perspectives, identifying power and ethical issues, and proposing a more sustainable alternative for Auckland’s new home.

Extension

• Write a short stakeholder comparison: “The Once-ler may argue ___, whereas the Lorax or local community may argue ___.”
• Redesign one decision for Auckland and justify how it could reduce environmental and social harm.