LESSON FOUR: HARMFUL BACTERIA
"E.COLI, PLEASE GO AWAY!""pray for the children of walkerton" |
Hook: Case Study: Harmful Bacteria
Students are arranged in groups of 3 and instructed to read and complete the related assignment for section 2.8 “Case Study: Harmful Bacteria” on pg. 118-119 to explore The Walkerton Tragedy.
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Activity: Observing the Effects of Antiseptics
In pairs, students will investigate the effect of antiseptics on a bacterial culture by designing a controlled experiment to test their prediction about the effect of antiseptics on bacterial growth.
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Other Lesson Teaching Ideas
1. Activity: My Hands Are Not Dirty! (Section 2.9 of Nelson Biology 11 College Preparation Workbook, pg. 86-87)
1. Activity: My Hands Are Not Dirty! (Section 2.9 of Nelson Biology 11 College Preparation Workbook, pg. 86-87)
2. Design A Bug
Students build on previous knowledge by designing a new bacterium, taking into consideration its structure, passage through immune system, disease symptoms, and treatment.
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3. Helpful and Harmful Bacteria
Students review information on helpful and harmful bacteria to complete a Venn diagram.
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Consolidation/Debrief: Class Discussion
As a whole class, educator facilitates a discussion in which students share their findings of the investigation of the effects of antiseptics, including whether their predictions were correct, difficulties in their procedure, and their results of how different antiseptics affected bacterial growth (which were most and least effective?).
As a whole class, educator facilitates a discussion in which students share their findings of the investigation of the effects of antiseptics, including whether their predictions were correct, difficulties in their procedure, and their results of how different antiseptics affected bacterial growth (which were most and least effective?).
- Teacher can use students findings and analysis as an assessment of student understanding