Plant Reproduction: Lesson Plan

Pollen causes sneezing and runny noses, but it is also the crucial component in the sexual reproduction of plants and trees.

UNC-TV Media

Alignment to NC Essential Standards

  • 7.L.2.1 — Explain why offspring that result from sexual reproduction (fertilization and meiosis) have greater variation than offspring that result from asexual reproduction (budding and mitosis).

Learning Outcomes

Students will compare and contrast the processes of sexual reproduction and asexual reproduction.

Essential Questions

  1. How do pine trees reproduce?
  2. What is pine pollen, and what does it contain?
  3. How does the process of sexual reproduction differ from the process of asexual reproduction?

Essential Vocabulary

  • Sexual reproduction
  • Asexual reproduction
  • Pollen
  • Egg
  • Sperm

Engage

 

Access student’s prior knowledge of plants and trees by having them view the UNC-TV Science animations Photosynthesis and Cellular Respiration

Afterwards, lead the class in a discussion of the pros and cons of plants and trees. As the animations show, they engage in a crucial relationship with animals by producing oxygen and reducing carbon dioxide. Are there any downsides? Among the other cons the students come up with, the idea of spring pollen and allergies should be discussed.

Explore

Students will view the UNC-TV Seasonal Science animation Pine Pollen, and engage in the Explore activity below.

Plant Reproduction Explore Activity:

Explain

Students will compare and contrast sexual reproduction and asexual reproduction by reading the attached article on Plant Reproduction and completing the attached graphic organizer, or creating their own. An answer key is provided here. 

Extend

Students can view the UNC-TV Science video Bee-Utiful Bee and discuss the following questions:

In what ways do the reproduction processes of blueberry blossoms and pine trees differ? In what ways are they alike?

Evaluate

Students will create a poster board, write a three-paragraph essay or provide a video or animation that compares and contrasts the processes of sexual and asexual reproduction. They should include definitions of the vocabulary and specific points for contrast from the vocabulary model and graphic organizer they created.