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by: Sally Jast


Sally Jast
GPA 3.64

Heather Johnson

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About this Document

Heather Johnson
Class Notes
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This 3 page Class Notes was uploaded by Sally Jast on Wednesday September 30, 2015. The Class Notes belongs to BIOL 475 at Western Kentucky University taught by Heather Johnson in Fall. Since its upload, it has received 26 views. For similar materials see /class/216719/biol-475-western-kentucky-university in Biology at Western Kentucky University.




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Date Created: 09/30/15
Microorganisms in the Environment Objectives Students will simulate suboptimal and optimal conditions for hand washing Students will relate the lack of thorough hand washing to the spread of infections Students will determine the cause of infections to be microorganisms such as bacteria and viruses Connections The objectives and assessments relate to Core Curriculum Content Statements SCM 311 SCM3l2 and SCM3l3 and to Kentucky s Learning Goal and Academic Expectation 2 SC M 311 Living systems at all levels of organization demonstrate the complementary nature of structure and function Important levels of organization for structure and function include cells tissues organs organ systems organisms eg bacteria protests fungi plants animals and ecosystems SC M 312 All organisms are composed of cells the fundamental unit of life Most organisms are single cells other organisms including plants and animals are multicellular SC M 313 Cells carry on the many functions needed to sustain life They grow and divide thereby producing more cells This requires that they take in nutrients which they use to provide energy for the work that cells do and to make the materials that a cell or an organism needs Goal 2 Students shall develop their abilities to apply core concepts and principles from mathematics the sciences the arts the humanities social studies practical living studies and vocational studies to what they will encounter throughout their lives Context This lesson is part of a unit on microorganisms Students have been introduced to basic types of microorganisms bacteria viruses protists yeasts They have studied the positive effects of microorganisms They will learn negative effects in this lesson Resources Aprons or smocks Timer or clocldwatch with second hand Sink Blindfold Washable nontoxic paint Paper towels Soap Plain paper Procedures Initiation Students will be asked preassessment questions Why do some people get sick They come in contact with microorganisms that make them sick How do people catch diseases from other people By spreading microorganisms from one person to another Students will de ne the word communicable Transferable from one person to another What is thought to be the single best way of preventing communicable diseases Washing hands with soap for 20 or more seconds Strategy Students will be preassessed with the leading questions mentioned in the previous section Students will also receive oral instructions for the experiment before beginning The teacher will demonstrate a simulation of the lab exercise Guided Practice Students will read relevant information from the textbook in class Students will also be allowed to repeat the experiment Independent Practice Students will be encouraged to try this experiment at home with friends and family members to observe various people s hand washing habits Students will answer related homework questions from the textbook Closure Students will be asked re ective extension questions on what they learned from the experiment Do you always wash your hands after using the restroom How long do you normally wash your hands What happens if you don t wash your hands or don t wash them long enough Based on what you have learned from this experiment should you change your hand washing habits Student Assessment Students will be preassessed by asking students the questions described in the Initiation section above Students will also be assessed during the lesson and postlesson by teacher observation of lab performance written results reported by students and a unit test including concepts learned in this lab exercise


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