Species Concepts

Year Level

Year 13 Science

Unit

Exploring Speciation in Biodiversity
Lesson 1 of 18

Lesson Title

Understanding Species Concepts

Lesson Duration

55 minutes

Class Size

30 students

Curriculum Alignment

This lesson aligns with the New Zealand Curriculum Science strand:

Level 8, Nature of Science: Understand how scientific ideas develop over time and are refined.
Level 8, Living World: Explain how biological ideas develop from evidence, including the concepts of species, variation, and evolution (achievement objective S8-3).
Science Capabilities: Using evidence, Critique evidence, Interpret representations.
Integrates Mātauranga Māori perspectives on biodiversity and species concepts, reflecting the holistic Māori worldview on nature and relationships (Te Ao Māori).

Learning Objectives

WALT (We Are Learning To):

Define what a species is
Identify and explain different species concepts, focusing on both biological and phylogenetic perspectives
Apply understanding to categorise species based on shared features

Success Criteria

By the end of the lesson, students will be able to:

Accurately define the biological species concept and the phylogenetic species concept
Outline key differences and applications of each species concept
Collaboratively classify species using sorting cards according to discussed concepts
Reflect on which species concepts might be more applicable in different situations

Teaching Materials

Sets of species sorting cards (images/names of species with distinctive traits)
Whiteboard and markers
Printed handouts summarising species concepts
Māori whakataukī related to the natural world (see Mātauranga Māori section)
Student notebooks and pens

Lesson Plan

1. Introduction (10 minutes)

Engage: Start by posing the question, "What makes a species a species?" Invite brief brainstorming from students.
Contextualise: Explain the importance of defining species for understanding biodiversity and evolutionary processes.
Introduce: Present the two key species concepts for today’s lesson:
- Biological Species Concept — species are groups of actually or potentially interbreeding natural populations, reproductively isolated from other such groups.
- Phylogenetic Species Concept — species are the smallest groups sharing a common ancestor, identified by unique shared characteristics.
Use clear diagrams on the whiteboard to illustrate these concepts.

2. Collaborative Group Activity: Sorting Species (25 minutes)

Group Setup: Divide the class into 6 groups of 5 students.
Task: Each group receives a set of species sorting cards showing different organisms with descriptive traits.
Instructions:
- Use biological and phylogenetic species concepts to sort and categorise the species cards.
- Discuss within the groups why groups of organisms belong (or do not belong) to the same species under each concept.
Teacher Role: Circulate to prompt critical thinking with questions such as:
- "How does reproductive isolation affect these species?"
- "What traits distinguish these species on an evolutionary tree?"
Bring in Māori perspectives by discussing species as interconnected living entities within ecosystems, reflecting on kaitiakitanga (guardianship of species and environments).

3. Group Presentations and Whole-Class Discussion (12 minutes)

Each group shares their sorting method and explains which species concept they used and why.
Open the floor for questions and reflections to deepen understanding.
Highlight the strengths and limitations of each species concept.

4. Summary and Reflection (5 minutes)

Recap key points: definitions and relevance of species concepts.
Introduce the extension task for advanced learners to research another species concept (e.g., ecological species concept or evolutionary species concept) and prepare a short presentation on its significance.
Relate the learning to New Zealand’s unique biodiversity and indigenous knowledge systems to emphasise cultural connections.

Differentiation and Support

For diverse learners: Provide labelled, visual sorting cards and use simplified language in handouts. Allow extra processing time in group discussions.
For advanced learners: Encourage independent research into additional species concepts and a mini-presentation. Challenge them to think critically about which species concept best fits specific ecosystems or organisms.
Alternative learning strategies: Use graphic organisers to help organise ideas visually. Offer peer support pairing.

Assessment

Informal formative assessment throughout:

Observing student discussions and group work to assess understanding and misconceptions.
Checking accuracy and reasoning during species sorting activity.
Listening to presentations for clarity in explaining species concepts.
Extension task presentations for depth of understanding.

Mātauranga Māori Integration

Begin with the whakataukī: “Mā te whakaaro nui e hanga te whare; mā te mātauranga e whakaū” (Big ideas create the house; knowledge maintains it).
Discuss the Māori holistic view of species as taonga (treasures) interconnected within ecosystems, which reflects relational thinking and underpins kaitiakitanga practices.
Encourage students to think about the role of species classification in protecting native biodiversity in Aotearoa New Zealand.

Timetable Summary

Time	Activity	Notes
10 min	Introduction & definitions	Brainstorm and present concepts
25 min	Group sorting activity	Collaborative and hands-on
12 min	Group presentations & discussion	Share reasoning and critique
5 min	Summary and reflection	Recap and extension task brief

This lesson plan is designed to engage Year 13 students actively with a foundational understanding of species concepts, blending scientific inquiry with cultural perspectives in line with the NZ Curriculum. It fosters collaboration, critical thinking, and respect for New Zealand’s unique biodiversity and indigenous knowledge systems.

If you would like me to create subsequent detailed lesson plans for the remaining 17 lessons in this unit, just let me know!

Teaching Instructions