At a Glance


  • STEM
  • Biology

Instructional Level

  • College & CEGEP
  • University


  • General Biology I

Tasks in Workflow

Social Plane(s)

  • Individual
  • Group

Type of Tasks

  • Creating & designing
  • Revising & improving
  • Reading
  • Taking a quiz & test

Technical Details

Useful Technologies

  • Clicker System


  • Single class period (< 90 mins)

Instructional Purpose

  • Application & knowledge building
  • Assessment & knowledge refinement


In this peer-instruction case study, students will learn about macroevolution and microevolution through iguanas speciation. Students take the role of evolutionary biologists and are tasked to predict the evolutionary forces that will act on a group of iguanas.

These iguanas have been living on an island until two hurricanes led them to drift and land on a different island. The students are tasked to design an experiment to test their predictions. This case study uses the flipped-classroom strategy in which students will prepare for the task by watching videos, reading the assigned sections of the book and performing a quiz before entering the classroom. Assigned videos to watch: Species concepts, Speciation. In the classroom, students will provide their predictions, design the experiment to test these predictions and answer clicker questions to strengthen their understanding of evolutionary forces.

Instructional Objectives

  • To provide an application on macro and micro evolution;
  • To design experiments to test predictions based on a situation.

Workflow & Materials


Activity Workflow

View on CourseFlow

Contributor's Notes

Edward Awad

Edward Awad

Vanier College, Montreal

  • Students get to see how macro evolution is linked to micro evolution;
  • They learn how to design biological experiments.
  • The students tend to have difficulty with designing an experiment;
  • The students often forget to include controls.
  • When they are designing the experiment, prompt them often and guide them in the right direction.

Applied Strategies


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