Lesson Plan

• Describe IVF, embryo transfer, and surrogacy as tools for conserving endangered mammals.
• Explain the key procedural steps for each assisted‑reproduction technique.
• Compare the advantages, limitations, and typical success rates of the three methods.
• Evaluate ethical considerations involved in using surrogate species.
• Apply knowledge to propose an appropriate ART for a given endangered‑species scenario.

• Projector and screen for slides/diagrams.
• Whiteboard and markers.
• Printed handout summarising IVF, embryo transfer, and surrogacy steps and examples.
• Short video clip of wildlife IVF or embryo transfer.
• Case‑study worksheets for group activity.
• Internet access for an interactive poll/quiz.

Begin with a striking fact: fewer than 500 black‑footed ferrets remain in the wild, yet assisted reproduction helped rescue the species. Ask students what they already know about breeding challenges faced by endangered mammals. Explain that today they will explore three assisted‑reproduction techniques—IVF, embryo transfer, and surrogacy—and will be able to describe each method, compare its pros and cons, and justify its use in conservation.

1. Do‑Now (5’) – Quick recall quiz on natural breeding barriers in endangered species.
2. Mini‑lecture (15’) – Overview of IVF, embryo transfer, and surrogacy using a flowchart diagram.
3. Group activity (20’) – Each group receives a case (e.g., giant panda, northern white rhino) and outlines the chosen ART’s steps, advantages, and limitations.
4. Gallery walk & discussion (10’) – Groups present key points; teacher highlights comparisons and ethical issues.
5. Guided practice (10’) – Whole class completes a comparison table of success rates and practical considerations.
6. Exit ticket (5’) – Write one sentence summarising when surrogacy is preferred over IVF or embryo transfer.

Recap that IVF provides access to gametes from non‑breeding individuals, embryo transfer maximises offspring from limited donors, and surrogacy offers a solution when conspecific females are unavailable. Remind students to complete the homework worksheet designing an ART plan for a chosen endangered species. Collect exit tickets and preview the next lesson on genetic screening of embryos.