You will learn
- Define environment, ecosystem, impact, sustainability.
- Explain dependence on the environment.
- Explain human impacts.
- Explain sustainable choices.
Version 0.2 · expanded edition · built from cited public sources Content is based on the official frameworks and sources listed under Sources and standards. No official endorsement is claimed. Written in the style of common primary school assessments. No exam result is promised.
Student lesson
- People depend on the environment.
- People also change the environment.
- Impacts can be positive or negative.
- Sustainable choices protect the future.
Words to know
the natural world and surroundings in which people, plants and animals live
a community of living things and their surroundings that depend on one another
the effect that an action has on people or the environment
meeting today’s needs without harming the ability of future generations to meet theirs
1. Discover: The river and the village
Mr Cole tells of a made-up village beside a river. “The river gives water, fish and fertile land,” he says. “People clear land, build and farm, which changes the river. If too much soil washes in, fish decline. If waste is dumped, the water spoils. If the village cares for the banks and plants trees, the river stays healthy. This is about sustainability.”
Think: What would happen to the village if the river became unhealthy?
2. Understand: Human-environment relationships
Idea 1: Depending on nature
People depend on the environment for air, water, food, materials, energy and livelihoods. An ecosystem is a community of living things and their surroundings that rely on each other, such as a forest, river or coast.
Idea 2: Changing nature
People also change the environment. Farming, building, mining, fishing, transport and waste all have an impact. Some impacts are positive, like planting trees or restoring land. Others are negative, such as pollution or loss of habitat. Often there are trade-offs to weigh.
Idea 3: Sustainable choices
Sustainability means meeting today’s needs without harming future generations. It involves using resources carefully, reducing waste, protecting nature and sharing benefits fairly. Individuals, communities, businesses and governments all have roles.
3. Worked examples
Example 1 (I show you): Define
Ecosystem.
- Think.
- Say.
- Check.
Answer: Living things and surroundings that depend on each other.
Example 2 (We do it together): Define
Sustainability.
- Think.
- Say.
- Check.
Answer: Meeting needs without harming the future.
Example 3 (You try): Give
A negative impact.
Show the steps and answer
- Think.
- Say.
- Check.
Answer: Pollution.
Did you know?
Sierra Leone has coastal mangroves, rainforests, savanna and mountains, each with its own ecosystem.
Why this matters
Understanding our link to nature helps us make wise choices for today and tomorrow.
4. Explore: Cause and effect chain
Choose an action (clearing land, planting trees, dumping waste). Draw a chain showing impacts on land, water, wildlife and people. Add one sustainable alternative.
- Choose.
- Draw.
- Add.
- Share.
Think about it: what did you notice?
What did you notice? One action affects many things.
5. Practise
Say it in a sentence
Use these starters when you talk about the lesson. Say them out loud.
- Environment is ___.
- An ecosystem is ___.
- Impact is ___.
- Sustainability is ___.
Guided practice
Question 1. What is environment?
Natural surroundings.
Question 2. What is an ecosystem?
Living things and surroundings.
Question 3. What is impact?
An effect.
Independent practice
Level 1: Start
- What is environment?
- What is an ecosystem?
- What is impact?
- What is sustainability?
- Name an impact.
Level 2: Grow
- Why depend on nature?
- Why change nature?
- Why sustain?
Level 3: Stretch
- Pick an action.
- Draw effects.
- Add an alternative.
Answers are in the answer key below. Try first, then check.
6. Apply: Social Studies in everyday life
Give one positive and one negative human impact on the environment.
Show a sample answer
Planting trees; pollution.
Another one. Notice one way people use nature in your area and one way to protect it.
Show a sample answer
Share.
7. Common mistakes
Fix: They do.
Fix: Some are positive.
8. Lesson summary and revision card
- I can define environment, ecosystem, impact, sustainability.
- I can explain dependence on the environment.
- I can explain human impacts.
- I can explain sustainable choices.
9. Check and master
Answer all 14 questions. You will see feedback after each one.
Your result appears here after you answer every question.
10. Key takeaways
- People depend on the environment.
- People also change the environment.
- Impacts can be positive or negative.
- Sustainable choices protect the future.
11. Next lesson
Exam practice
These questions are written in the style of common school and international primary assessments. Try them on your own, without looking back. Then check your answers in the marking guide. The marks are shown in brackets.
- Define environment and ecosystem. [2 marks]
- Give three ways people depend on the environment. [3 marks]
- Explain one human impact and a sustainable alternative. [3 marks]
- Explain why sustainability matters. [2 marks]
Total: 10 marks.
Marking guide and model answers
- Environment [1]; ecosystem [1]
- Three [3]
- Impact [1]; alternative [1]; link [1]
- Meaning [1]; reason [1]
Score guide: 9 to 10 = secure. 6 to 8 = nearly there, revise the parts you missed. Under 6 = work through the lesson again with a grown-up.
Printable worksheet
- What is environment?
- What is an ecosystem?
- What is impact?
- What is sustainability?
- Name an impact.
- Why depend on nature?
- Why change nature?
- Why sustain?
- Pick an action.
- Draw effects.
Homework
Draw a cause and effect chain.
Answer key and marking scheme
| Question | Expected response | Marks |
|---|---|---|
| 1. What is environment? | Natural surroundings. | 1 |
| 2. What is an ecosystem? | Living things and surroundings. | 1 |
| 3. What is impact? | An effect. | 1 |
| 4. What is sustainability? | Meeting needs fairly over time. | 1 |
| 5. Name an impact. | Pollution. | 1 |
| 6. Why depend on nature? | Food and water. | 1 |
| 7. Why change nature? | Needs. | 1 |
| 8. Why sustain? | Future. | 1 |
| 9. Pick an action. | Action. | 1 |
| 10. Draw effects. | Effects. | 1 |
| Total | 10 |
Independent practice answers. Level 1: 1 Natural surroundings.; 2 Living things and surroundings.; 3 An effect.; 4 Meeting needs fairly over time.; 5 Pollution.. Level 2: 1 Food and water.; 2 Needs.; 3 Future.. Level 3: 1 Action.; 2 Effects.; 3 Alternative..
Quiz answers: 1 B, 2 C, 3 A, 4 B, 5 C, 6 A, 7 B, 8 C, 9 A, 10 B, 11 C, 12 A, Challenge 1 B, Challenge 2 C.
Mastery and remediation
| Objective | Bronze (Developing) | Silver (Proficient) | Gold (Advanced) |
|---|---|---|---|
| O1 Define environment, ecosystem, impact, sustainability | Shows this with help from an adult or a picture | Does this independently and explains how they know | Explains it clearly and uses it in a new situation |
| O2 Explain dependence on the environment | Shows this with help from an adult or a picture | Does this independently and explains how they know | Explains it clearly and uses it in a new situation |
| O3 Explain human impacts | Shows this with help from an adult or a picture | Does this independently and explains how they know | Explains it clearly and uses it in a new situation |
| O4 Explain sustainable choices | Shows this with help from an adult or a picture | Does this independently and explains how they know | Explains it clearly and uses it in a new situation |
Courseversity badge thresholds (overall quiz score): Gold = 90–100%; Silver = 80–89.9%; Bronze = 70–79.9%. A badge is never a full record of progress.
If a learner struggles
- Find the misconception: “People do not affect nature.” They do.
- Explain another way: use real objects, pictures or actions first, then words.
- Show a simpler example: Make an environment chart.
- Guided practice: work through one example together and let the learner try the next one.
- Reassess: use the quiz again or the worksheet.
- Move on when the learner shows Silver-level evidence independently.
For parents and guardians
In this lesson your child studies people and nature. Please notice local plants and water together. You do not need to be an expert to help.
- Walk and notice nature.
- Save water.
- Reduce waste.
- Ask “how do you know?” after each answer, and listen.
- Praise effort, not only right answers. Mistakes are how we learn.
- Ten to fifteen minutes a day is better than one long session.
Teacher package
1–5. Objectives, prerequisites, materials, preparation, duration
Lesson objectives. Learners will: define environment, ecosystem, impact, sustainability; explain dependence on the environment; explain human impacts; explain sustainable choices.
Prerequisite knowledge. Grade 5 ideas: natural resources, land use, resource management and conservation.
Materials. Chart paper, markers. Low-resource options: use chalk or charcoal on a board or wall, drawings in the sand, and objects from the classroom instead of printed materials.
Preparation. Prepare pictures.
Suggested duration. 45–60 minutes. It can be split into two shorter sessions.
6–9. Teaching procedure, explanation notes, guided and independent activities
Introduction (5 min). Tell the river and the village story.
Explanation (10 min). Teach human-environment relationships.
Guided activity (10 min). Cause and effect chain.
Independent activity (10 min). Discuss.
Assessment and reflection (5 min). Ask each learner to say one thing they learned and how they know it.
Key questions. How do people and the environment affect each other?
Teacher explanation notes. Start with a picture, story, map or local example. Then talk about what was seen, then draw and write. Always ask “how do you know?” and invite more than one view. Treat every family, culture and community with respect, and never ask learners to share private information.
10–12. Differentiation, formative assessment, common misconceptions
Support. Use pictures, maps, real objects and short sentences, and let learners work with a partner. Let learners point, show, act or draw instead of writing. Extension. Ask learners to find a new example from their own community and explain how they know.
Formative assessment. Listen to learners read and explain, ask “how do you know?”, and check the independent work.
Misconceptions. “People do not affect nature.” They do.
13–15. Assessment questions, answer keys, marking scheme
Use the quiz, the 10-mark exam practice and the worksheet on this page. All answers and marking guides are in the answer sections above. Re-check every answer before use.
16–19. Remediation, enrichment, homework, teacher reflection
Remediation. Make an environment chart. Enrichment. Find one new example near your home or school, draw or write about it and explain it to someone. Homework. See above.
Teacher reflection. After teaching, record: which ideas learners understood; which misconceptions occurred; which activities worked; which learners need more practice; and what to improve next time.
Sources and standards
This lesson is based on the sources below, and no official endorsement is claimed. Reference starting points: NCSS standards and C3 Framework, Cambridge Primary Humanities and the IB Primary Years Programme. Where a standard code is named, it points to the official framework.
Research used to shape this lesson. Courseversity Social Studies curriculum, Grade 5 Unit 9, topic 1; NCSS C3 Framework, human-environment interaction and geographic representations; Cambridge Lower Secondary Humanities, environment and sustainability; IB Primary Years Programme, sharing the planet. These sources informed the lesson.