5/26/15
Materials Needed: Binder, Pencil
LS - 15
Homework: #103 (8I only)
DO NOW:
Agenda:
Observe the pictures below.
What might have caused the
giraffe population to
decrease?
Before
After
1. Do Now (5)
2. Experiment (10)
3. Dismiss (3)
1. Write down the
homework in
your agenda.
Objectives
• Scientists will be
able to describe the
2. Have your pen or
basic rules and
pencil ready to
procedures of 6th
go.
grade science.
Do-Now Review
• The goals of an organism in nature are to live, grow
and reproduce.
• If living conditions are good, an organism’s
population will grow. However, if living conditions
aren’t ideal, some organisms might die.
• Today, we’ll look at
what can stop organisms
and their populations
from growing.
Today’s Agenda
•
•
•
•
•
•
Objectives
Guided Notes: Limiting Factors
Case Study Analysis
Newspaper Article
Terrarium/Aquarium Planning
Homework: none
Objectives
Scientists will be able to identify limiting
factors in an ecosystem and hypothesize
of their effects on a population.
Writing/Speaking: Students will use evidence to support
their answers.
What are we doing?
We are learning about ecology.
Why are we doing it?
Now that we know all about organisms, we
need to understand what the role is of every
living thing (and nonliving, too!)
How do I know you’ve got it?
If you can show me that you understand the
impacts of relationships and change, you’ve got
it.
New Word: Limiting Factor
• A limiting factor is a part of a habitat that can
cause a population to decrease.
• Any guesses what some limiting factors might be?
– ???
Today’s Objective: Scientists will be able to identify limiting factors in an
ecosystem and generate a hypothesis of their effects on a population.
Activity: Case Studies
• Real ecologists study ecosystems, then write case studies to
help other scientists understand nature.
• After each, write one piece of evidence from the text, and
then analysis to explain what
you think the liming factor is.
• After this is an evaluation of a
newspaper article (HW).
• Expectations:
indoor voices, with partners
Today’s Objective: Scientists will be able to identify limiting factors in an
ecosystem and generate a hypothesis of their effects on a population.
Example
• Read for this question:
What is the limiting factor that
causes the population to decrease?
Evidence
Analysis
Limiting Factor
Today’s Objective: Scientists will be able to identify limiting factors in an
ecosystem and generate a hypothesis of their effects on a population.
Let’s Review!
• What were the four main limiting factors you read about?
– Food, Water, Living Space and Temperature
• Are limiting factors biotic or abiotic?
– Can be either!
Today’s Objective: Scientists will be able to identify limiting factors in an
ecosystem and generate a hypothesis of their effects on a population.
Limiting Factors in Real Life!
Read one additional newspaper article on a population of
organisms struggling because of limiting factors. Then,
answer the questions. This is homework if you do not finish
it.
Today’s Objective: Scientists will be able to identify limiting factors in an
ecosystem and generate a hypothesis of their effects on a population.
Terrarium/Aquarium Planning
In groups, you will be creating either a terrarium or an aquarium.
They should try to contain local species. Do some research
and make a plan for tomorrow when we collect specimen.
Today’s Objective: Scientists will be able to identify limiting factors in an
ecosystem and generate a hypothesis of their effects on a population.
Homework:8I Finish the article #103
Answer the questions that go along with the article.
Let’s reflect on what we’ve learned!
BYL
Reflect on what you’ve learned today. Use some or all of
these sentence starters to help you:
“I am still confused about_________”
“The big ideas I gained from the investigation were
_________________”
“Next I would like to explore ____________ because I
wonder ___________________”
“The results make me think _________________ will
happen because _______________________”
“At first I thought ______________ but now I know
_______________”
Stack, pack, and leave no tracks.
Scientist of the Day