Subject: Science
Grade Level: Grade 8
Objective:
1. Define high and low biodiversity
. Cite some advantages of high biodiversity; and
3. Realize the importance of Biodiversity in maintaining the stability of the ecosystem
Learning within and across curriculum:
- Within:
1) Ecosystems
2) Environmental Science
3) Geography
- Across:
1) Mathematics - Population Dynamics
2) Social Studies - Conservation Efforts
3) English - Writing about Environmental Issues
Review Motivation:
[Teaching Strategy: Role-Playing]
[Instructional Materials: Pictures of Diverse Ecosystems]
Engaging Activity 1 - Brainstorming on Biodiversity
Engaging Activity 2 - K-W-L Chart on Ecosystem Stability
Engaging Activity 3 - Science Experiments on Biodiversity
Activity 1: Biodiversity Scavenger Hunt
[Teaching Strategy: Experiential Learning]
Materials - List of Biodiversity Items
Significance - Understanding Biodiversity in the Environment
Instructions 1) Students form groups and find different examples of biodiversity in their
surroundings.
2) Record their findings and discuss the importance of each item.
3) Present their discoveries to the class.
Rubric:
- Accuracy of Items - 15 pts.
- Explanation of Importance - 10 pts.
- Presentation Skills - 10 pts.
Assessment Questions:
1) What is biodiversity and why is it important?
2) Give an example of high biodiversity in an ecosystem.
3) How does biodiversity contribute to ecosystem stability?
Activity 2: Biodiversity Debate
[Teaching Strategy: Cooperative Learning]
Materials - Debate Topics on Biodiversity
Significance - Encouraging Critical Thinking on Biodiversity Issues
Instructions 1) Divide the class into two groups: one supporting high biodiversity and the other
low biodiversity.
2) Each group prepares arguments and counterarguments for the debate.
3) Conduct the debate with a focus on scientific evidence.
Rubric:
- Clarity of Arguments - 15 pts.
- Use of Evidence - 10 pts.
- Rebuttal Skills - 10 pts.
Assessment Questions:
1) What are the advantages of high biodiversity in an ecosystem?
2) How can human activities impact biodiversity levels?
3) Discuss the role of biodiversity in maintaining ecosystem balance.
Inclusive Activity 3: Biodiversity Concept Mapping
[Teaching Strategy: Visual Aids]
Materials - None
Significance - Enhancing Understanding of Biodiversity Concepts
Instructions 1) Students create a concept map illustrating the relationship between biodiversity
and ecosystem stability.
2) Include examples labels to explain key concepts.
3) and discuss their concept maps with classmates.
Rubric:
- Clarity of Connections - 15 pts.
- Inclusion of Examples - 10 pts.
- Creativity in Design - 10 pts.
Assessment Questions:
1) How does biodiversity contribute to the resilience of an ecosystem?
2) Explain the concept of species diversity in relation to ecosystem health.
3) Describe the impact of habitat destruction on biodiversity levels.
ANALYSIS:
Activity 1 - Students demonstrated an understanding of biodiversity through realworld examples.
Activity 2 - Engaged in critical thinking and debate skills to explore biodiversity
issues.
Activity 3 - Visualized and connected biodiversity concepts effectively through
concept mapping.
ABSTRACTION:
Biodiversity is crucial for ecosystem stability, providing resilience and balance to
natural environments. Understanding the benefits of high biodiversity can help in
conservation efforts and sustainable practices.
Supporting Material 1 - "The Importance of Biodiversity in Ecosystems" - Explores
the interconnectedness of species and ecosystems.
Supporting Material 2 - "Conservation Strategies for Biodiversity Preservation" Discusses practical methods for protecting biodiversity.
APPLICATION:
[Teaching Strategy: Problem-Based Learning]
Task 1 - Analyze a local ecosystem and propose strategies to enhance biodiversity.
Task 2 - Create a public service announcement highlighting the importance of
biodiversity conservation.
ASSESSMENT:
[Teaching Strategy: Inquiry-Based Learning]
[Instructional Materials: Assessment Rubrics]
Question 1 - Explain the difference between high and low biodiversity and their
impact on ecosystem health.
Question 2 - Discuss two advantages of high biodiversity in natural ecosystems.
Question 3 - How can human activities contribute to the loss of biodiversity in an
ecosystem?
H.O.T.S.:
Question 1 - Evaluate the role of biodiversity in maintaining ecosystem resilience.
Answer 1 - Biodiversity ensures that ecosystems can adapt to changes and remain
stable over time.
Question 2 - Justify the importance of conserving biodiversity for future generations.
Answer 2 - Preserving biodiversity safeguards ecosystem services and genetic
resources essential for sustainability.
Question 3 - Analyze the relationship between species diversity and ecosystem
function.
Answer 3 - Greater species diversity often leads to increased ecosystem productivity
and resilience.
Assignment:
1) Research and write a reflection on a local conservation project aimed at
preserving biodiversity.
2) Design a poster promoting biodiversity awareness in the community.