Virginia Department of Education
The Germ Theory and Koch’s Postulates
Explore the history of cholera and its effect on society with your biology class. Young biologists will then proceed to grow their own germs, prepared from live cultures, and follow the steps of the scientific method to generate data....
Centers for Disease Control and Prevention
Diseases
During a cholera outbreak, scientists presented two theories; one theory was based on miasma and the other on germs and contaminated water. The lesson looks at the scientific process for finding the real culprit.
Curated OER
What's That Brown Fuzzy Stuff on My Plum?
Learners use Koch's Postulates to determine that a specific organism is the root cause of a specific disease and identify what Koch's Postulates are within a protocol. They describe symptoms and signs of diseased fruit and isolate fungal...
Curated OER
What's That Brown Fuzzy Stuff On My Plum?
Students examine Koch's Postulates by actually using them. They perform each of the required four steps to show that the brown fuzzy fungus they see growing on stone fruit (plums, peaches, nectarines, cherries) is what causes them to rot.