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The Gametophyte & Sporophyte Lesson Plan

Instructor: Julie Zundel

Julie has taught high school Zoology, Biology, Physical Science and Chem Tech. She has a Bachelor of Science in Biology and a Master of Education.

Plant reproduction can be tricky. This lesson plan explores plants that reproduce using alternation of generations. Students will play games and get ample opportunities to be creative, all while learning a difficult topic.

Learning Objectives

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

  • Understand the vocabulary associated with alternation of generations
  • Diagram the alternation of generations, correctly labeling key terms and processes

Length

  • 60 minutes

Curriculum Standards

  • MS-LS3-2.

Develop and use a model to describe why asexual reproduction results in offspring with identical genetic information and sexual reproduction results in offspring with genetic variation.

  • CCSS.ELA-LITERACY.RST.6-8.4

Determine the meaning of symbols, key terms, and other domain-specific words and phrases as they are used in a specific scientific or technical context relevant to grades 6-8 texts and topics.

  • CCSS.ELA-LITERACY.RST.6-8.7

Integrate quantitative or technical information expressed in words in a text with a version of that information expressed visually (e.g., in a flowchart, diagram, model, graph, or table).

Materials

Sample diagram
generation

  • Notecards that say the following (about 10 of each notecard)
    • Meiosis
    • Mitosis
    • Spore
    • Gametes
    • Zygote
  • Small poster board for each student
  • Copies of the Lesson Quiz, one for each student.

Instructions

This lesson plan is divided up into sections, and each is depicted by its own heading below.

Video

  • Have students prepare a note sheet (either create a flipbook or use regular paper).
  • Begin the video lesson, stopping at the following points to have students jot down notes, specifically the definitions of haploid and diploid:
    • 0:29, 0:49, 1:15, 1:36
  • Discuss as a class what they think a haploid and diploid Garblinx should look like. For example, maybe the haploid Garblinx has three eyes and no mouth, but the diploid version has five eyes and scary teeth.
  • Resume the video, pausing at 2:41 for students to draw the alternation of generations life cycle in their notes.
  • Now resume the video, pausing for students to jot down definitions (3:05, 3:24, 3:46, 3:55, 5:05, 5:25) and pause at the 6 minute mark.

Masks

  • Choose an organism to undergo alternation of generations, something like a hornwort or liverwort.
  • Show images of a sporophyte and gametophyte (of whatever plant you choose) to the class.
  • Then divide students into 3 groups: groups 1 and 2 are going to be haploid gametophytes and group 3 are going to be diploid sporophytes.
  • Instruct students to make a mask of their plant phase on a paper plate. Then have students punch holes in sides of mask and attach yarn to to fit their head.
  • While students are working, set up the game below by placing the stacks of vocabulary notecards throughout the classroom (the teacher can keep the zygote cards).
  • Tape the sample diagram of the alternation of generations to the board, showing what order students will follow to collect cards.

Game

  • Tell students they are going to play a game where the organism they chose undergoes alternation of generations.
  • Game rules:

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