7Sb.3: Compare the body shapes of bacteria (spiral, coccus, and bacillus) and the body structures that protests (euglena, paramecium, amoeba) use for food gathering and locomotion
3- Lesson
Comparing and Contrasting Good and Bad Bacteria
Title-
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Directions
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Materials/Resources
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The Good, The Bad, The Bacteria!
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Resources
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Group Activity
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1)
The students will be shown a picture of the three shapes of bacteria-
spiral, rod, and rod
2)
The teacher will have the students get out the Micro Slides 19 and 20
and work in groups of 2.
3)
The students will answer questions comparing and contrasting harmful
and helpful bacteria while observing and drawing the slides using the Micro
slides.
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-Microslide Lesson Set
19- Helpful Bacteria
Microslide 19
Worksheet-Questions
-Microslide Lesson Set
20-Harmful Bacteria
Microslide 20
Worksheet-Questions
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Class
Demonstration
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1)
The teacher will model how to put the slides through the micro slides
and how to compare and contrast the helpful and harmful bacteria through
drawing what is observed through the lens.
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Question 1-
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1)
What are the 3 types of bacteria cells?
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Sphere (cocci), spiral (spirillium), and rod (bascillus)
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Question 2--
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2)
What types of food do helpful bacteria give us?
3)
What types of diseases do harmful bacteria give us? Why can’t we kill
them?
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-cheese,
yogurt, milk
-Harmful
bacteria give us colds, infections, and many other possibly pathogenic
diseases
-We
can’t kill them with antibiotics because they mutate and become resistant-
one of the characteristics of living, evolving and adapting to survive.
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