21 / 121
MODULE 2
PRINCIPLES OF ECOLOGY
ENCOUNTER THE PHENOMENON
Why would a bird build a nest
in a tree with thorns?
GO ONLINE
to watch a video
about community interactions in an
ecosystem.
Ask Questions
Do you have other questions about the phenomenon? If so, add them to the driving
question board.
CER
Claim, Evidence, Reasoning
Make Your Claim
Use your
CER chart to make a claim
about why a bird would build
a nest in a tree with thorns.
Explain your reasoning.
Collect Evidence
Use the
lessons in this module to
collect evidence to support
your claim. Record your
evidence as you move
through the module.
Explain Your Reasoning
You
will revisit your claim and
explain your reasoning at the
end of the module.
GO ONLINE
to access your CER chart and explore resources that can help you collect
evidence.
LESSON 2: Explore & Explain:
Energy Flow in an Ecosystem:
Food Webs
LESSON 1: Explore & Explain:
Levels of Organization
Additional Resources
(t)Video Supplied by BBC Worldwide Learning; (b)Don Hammond/Design Pics
Module 2 • Encounter the Phenomenon
23