Parasitism_Lesson_Slides.pdf, it will define parasitism

what is parasitism and examples of parasitism

1. Population Ecology:
Parasitism
Grade 11 Life Sciences
Frostriver High School
Duration: 15 minutes

2. Introduction
• Hook: 'Some organisms are
successful by being great partners,
but others succeed by being clever
thieves. Today, we’re looking at
parasites.'
• Brainstorming: When you hear
the word 'parasite', what comes to
mind?
• Learners share initial ideas (e.g.,
sickness, ticks, laziness).
• Teacher writes responses on the
board.

5. Engagement
Phase
Show 2 short video clips:
Tick on a Dog
Mosquito on a Human
Pose the key question:
Is the relationship between the tick and dog
symbiotic?
Who benefits and who is harmed?
Learners discuss in pairs and share their
reasoning using Claim, Evidence, Warrant.

6. Consolidation
•• Definition: Parasitism is an interaction where one species (parasite)
benefits at the expense of the other (host).
•• Quick-draw activity:
•-Learners draw a diagram showing flow of resources (+ for benefit, -for
harm).
•• Multiple Choice:
•a) Parasitism is a type of mutualism.
•b) The host benefits from the parasite.
•c) Parasites often weaken their hosts. (Correct)
•• Teacher explains misconceptions.

7. Reflection
•• Learners reflect: What did I
learn about parasitism?
•• How is parasitism different
from other interactions?
•• Teacher reinforces key
takeaways:
•-Parasite benefits, host is
harmed.
•-Examples: ticks, mosquitoes,
tapeworms.