Reflection: Developing a Conceptual Understanding Modeling the Prokaryotic Cell (Part 1/2) - Section 3: Student Activity: Building a Better Bacteria


Biology is messy. Real life organisms rarely look as perfect as artist depictions. There is a lot of variation within a species. It is important to show students both actual images that they might see in the lab and good artist depictions. When we first start looking at microorganisms, I make sure I show my students like what these living things look. We look at images magnified using a light microscope and images magnified using an electron microscope. Students need to understand the types of cell structures that can be seen at different magnifications.

Check out my screencast-o-matic that shows how I explain the differences between light microscopes and electron microscopes. I also have students color in the artist rendition of the differences between gram-positive and gram-negative bacteria.  

  Developing a Conceptual Understanding: The Importance of Showing Students Actual Images of Bacteria
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Modeling the Prokaryotic Cell (Part 1/2)

Unit 3: Bacteria
Lesson 1 of 4

Objective: The students will compare prokaryotic cell structure to eukaryotic cell structure.

Big Idea: Create a simple model of a prokaryote cell using common everyday items.

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Biology / Life Science, Science, Cells and Cellular Processes, Model organisms, Developing and Using Models, Systems and System Models
  46 minutes
e coli at 10000x  original
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