Science Lesson Kit · Teacher Resource
Changing Habitats: When a Need Is Missing — 5E Lesson Plan
Life Science · 50 minutes
Grade 3
5E lesson flow
01
Engage
7 min
Teacher Does
Show the pond before and after a dry period.
Students Do
List which resources visibly changed.
Ask
- What disappeared? What stayed?
Look For
Specific resource changes.
02
Explore
15 min
Teacher Does
Distribute organism-resource cards.
Students Do
Match each organism to resources and predict responses to one habitat change.
Ask
- Which need is affected?
Look For
Organism-specific reasoning.
03
Explain
10 min
Teacher Does
Connect group predictions to survival language.
Students Do
Classify organisms as likely to survive well, less well, or poorly in the changed habitat.
Ask
- What evidence moves an organism into that category?
Look For
Evidence-based argument.
04
Elaborate
11 min
Teacher Does
Reveal population evidence cards.
Students Do
Revise predictions and discuss direct vs indirect effects.
Ask
- Did the data strengthen or weaken your claim?
Look For
Revision based on evidence.
05
Evaluate
7 min
Teacher Does
Assign the new meadow-stream worksheet.
Students Do
Transfer the reasoning to a different habitat.
Ask
- Which resource is the key evidence?
Look For
Transfer without copying the pond answer.
Student goal
I can use resource evidence to explain why organisms survive differently when a habitat changes.
Learning objectives
- I can identify food, water, shelter, and space as resources organisms may need.
- I can use evidence to compare how well different organisms can survive in one habitat.
- I can predict how a specific habitat change may affect organisms differently.
Materials
- Pond habitat board
- Organism cards
- Resource cards
- Drying-pond change cards
- Population evidence cards
- Chart paper
Before class
- Set up one pond board per group.
- Pair each organism card with explicit resource needs.
- Prepare before/after resource cards.
- Avoid implying that one change has the same effect on every species.
Prior knowledge
- Organisms need resources.
- Habitats contain living and nonliving parts.
Vocabulary
- habitat
- The place where an organism lives and gets the resources it needs.
- resource
- Something an organism needs from its environment, such as food, water, shelter, or space.
- survive
- To stay alive under the conditions of an environment.
- shelter
- A protected place that helps an organism avoid danger or harsh conditions.
- evidence
- Data or observations used to support a claim.
- population
- A group of organisms of the same kind living in the same area.
Differentiation
- Color-code resource cards by food, water, shelter, and space.
- Use the frame: ___ may survive less well because ___.
- Allow students to manipulate cards before writing.
- For extension, ask students to identify one indirect effect and label it as less certain.
Assessment
- Check organism-resource matches.
- Check predictions after one change.
- Check evidence-based revision.
- Check transfer to the new habitat.
Exit ticket
Choose one pond organism. Name one resource it needs and explain how the drying pond could change its chance of survival.
Extension
Add a second habitat change and explain whether it reinforces or offsets the first effect.