Mites Lesson Plan

Instructor: Kerry Gray

Kerry has been a teacher and an administrator for more than twenty years. She has a Master of Education degree.

Your students will be interested to know about the millions of microscopic creatures that exist all around them. Through the use of this lesson plan, you will be able to teach your students about the life cycle and characteristics of dust mites.

Learning Objectives

After this lesson students will be able to:

  • describe dust mites
  • illustrate the life cycle of a dust mite


This lesson will take approximately 60-90 minutes.

Curriculum Standards


Construct a scientific explanation based on evidence for how environmental and genetic factors influence the growth of organisms.


Analyze and interpret data to provide evidence for the effects of resource availability on organisms and populations of organisms in an ecosystem.


Construct an explanation based on evidence that describes how genetic variations of traits in a population increase some individuals' probability of surviving and reproducing in a specific environment.


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.


  • class Arachnida
  • exoskeleton
  • larva
  • molting
  • protonymph
  • tritonymph



  • Activate prior knowledge by asking students if they have any allergies. Listen to students talk about their various allergies and what happens when they get an allergic reaction. Try to identify if there is anyone in the class that is allergic to dust mites. Explain that this lesson is going to be about dust mites.
  • Read the lesson Dust Mites: Size, Life Cycle & Facts as a class.
  • Pause after reading the Introduction and Size section.
  • Show students photos of a dust mite and a spider side-by-side. Have students create a T-chart to compare and contrast the class Arachnida.
  • Continue reading the Gross/Interesting Facts section.

Pause to have students turn and talk about the most interesting thing they learned about dust mites. Continue reading the remainder of the lesson.

Use the lesson's printable worksheet to check for understanding.


Materials Needed

  • access to a computer with internet and word processing software
  • printer

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