New Hope for Hemlocks: Lesson Plan

Learn about various ways organisms interact with each other (including predation, competition, parasitism, mutualism) and with their environments resulting in stability within ecosystems. Then, watch the NC Science Now video New Hope For Hemlocks to learn how organisms interact in real-life ecosystems.

UNC-TV Media

Alignment to NC Essential Standards

  • NCES.Bio.2.1.3 — Explain various ways organisms interact with each other (including predation, competition, parasitism, mutualism) and with their environments resulting in stability within ecosystems.

Learning Outcomes

Time Allotment Needed: 3 days (block schedule)

  • Students will explain various ways organisms interact with each other (including predation, competition, parasitism, mutualism) and with their environments resulting in stability within ecosystem.

Essential Questions

  1. What is predation?
  2. What is competition?
  3. What is parasitism?
  4. What is mutualism?
  5. What is habitat?
  6. What is niche?

Essential Vocabulary

  • Predation   
  • Predator
  • Prey
  • Competition
  • Parasitism
  • Host
  • Parasite
  • Mutualism
  • Habitat
  • Niche
  • Community (ecology)

Engage

Students will watch the video Community ecology: Feel the love and Community ecology II: Predators. These videos give an overview of community ecology and will provide a foundation for further study.

Explore

Students will work independently to gather information about various ways that organisms interact with each other (including predation, competition, parasitism, mutualism) and with their environments. 

The websites below are some possible places that students can find information. There are many websites available that students might find during their search. Remind students to check and see if a web page has multiple pages or has a link to pages with additional information.

Relationships: Predation, Competition, Symbiosis — Ck12.org

Predators: Facts — Idahoptv.org

Symbiosis — Bio.miami.edu

Niche — Nhptv.org

Habitat and Niche — Ck12.org

 

 

Explain

After exploring information about various ways organisms interact with each other, students will work in small groups and answer the following questions. If needed, students can review the websites above or other websites to clarify any concepts that they do not understand.

  1. What is predation?
  2. What is competition?
  3. What is parasitism?
  4. What is mutualism?
  5. What is a habitat?
  6. What is a niche?

Extend

Students will view the NC Science Now video New Hope for Hemlocks to learn how predation destroyed hemlock forests and how predation hopefully will allow them to grow back. As students watch the video have them answer the following questions.

  1. Describe what originally destroyed the hemlock forests.
  2. Describe why scientists are hopeful that the hemlock forests will return.

 

Evaluate

In the same small group, students will prepare a set of drawings or slides that explain various ways organisms interact with each other (including predation, competition, parasitism, mutualism) and with their environments resulting in stability within ecosystems. Students should use these drawings or slides to prepare a presentation to the class. Each student should prepare at least one slide for the presentation and explain it to the class as part of the presentation. Students should use the information gathered throughout this lesson and if necessary do additional research.

Evaluation Rubric