Macromolecules Lesson Plan

Instructor: Josh Corbat

Josh has taught Earth Science and Physical Science at the High School level and holds a Master of Education degree from UNC-Chapel Hill.

Use this lesson plan to introduce students to macromolecules. Students will watch an informative video lesson, discuss macromolecules, and create a poster of a chosen macromolecule.

Learning Objectives

After this lesson, students will be able to:

  • define macromolecule.
  • give several examples of important macromolecules and describe one in detail.


60 - 90 minutes

Curriculum Standards


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 9-10 texts and topics.


Translate quantitative or technical information expressed in words in a text into visual form (e.g., a table or chart) and translate information expressed visually or mathematically (e.g., in an equation) into words.


  • Poster board
  • Art supplies


  • Begin the lesson by writing the prefix 'macro-' on the board. Ask students what this prefix means. Next, write 'molecule' on the board. Do students know what this is? Can they surmise what a macromolecule is?
  • Start the video lesson Macromolecules: Definition, Types & Examples. Pause the video at 1:19 to discuss the following questions as a class:
    • What is a macromolecule?
    • What is a polymer? How are these related to macromolecules?
    • What is a monomer? How are these related to polymers?
  • Resume the video. Pause it again at 2:13. Discuss the following questions:
    • What are some common types of macromolecules?
    • Why are macromolecules important to us?
  • Resume the video. Pause it again at 3:55. Discuss:
    • What are some common types of macromolecules used in industry?
    • What common materials and objects can some of these macromolecules be found in?
    • What is the process of polymerization used for?
    • What are bioplastics? What benefit do these materials have?
  • Resume and finish the video. Discuss:
    • What four types of macromolecules make up all life?
    • Describe each of these four macromolecules. What are they made of? What are they used for? Why are they important to us?

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