You will learn
- Say what waste is.
- Name waste at home and school.
- Sort waste into kinds.
- Say why reducing waste helps.
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
- Waste is what we throw away.
- Waste comes from food, paper, plastic and packaging.
- Some waste rots and some does not.
- Less waste means a cleaner world.
Words to know
things we throw away
another word for waste
from plants or animals, such as food scraps
what goods are wrapped in
1. Discover: The lunch bin
After lunch, the class looks in the bin. They find banana peels, paper, plastic bags and food. “Some of this will rot and some will stay for years,” says the teacher. “Let us find ways to make less waste.”
Think: What kinds of waste are in the bin?
2. Understand: What is waste?
Idea 1: Waste
Waste is what we throw away. It is also called rubbish. We make waste at home, at school and in markets. Food scraps, paper, cans, bottles and packaging are waste.
Idea 2: Kinds of waste
Organic waste, such as peels, comes from plants and animals and rots. Plastic, glass and metal waste does not rot easily. Some waste can be reused or recycled.
Idea 3: Too much waste
Too much waste fills dumps, blocks drains, pollutes water and harms animals. We can make less waste by using things again, taking only what we need and fixing things.
3. Worked examples
Example 1 (I show you): Organic or not?
A banana peel and a plastic bag.
- The peel rots.
- The bag does not.
- Peel: organic.
Answer: A banana peel is organic; a plastic bag is not.
Example 2 (We do it together): Make less
A single-use cup.
- Bring a reusable bottle.
- Fewer cups.
- Less waste.
Answer: A reusable bottle makes less waste.
Example 3 (You try): Where does it go?
A can.
Show the steps and answer
- Not in the river.
- In a bin.
- Maybe recycled.
Answer: Put cans in a bin or recycle them.
Did you know?
A banana peel breaks down in a few weeks, but a plastic bottle can last hundreds of years.
Why this matters
Making less waste keeps our environment healthy and saves resources.
4. Explore: Waste sort
Sort clean pretend waste into groups.
- Use pictures or clean safe items.
- Sort into organic, paper, plastic and metal.
- Count each group.
- Say which is biggest.
Think about it: what did you notice?
What did you notice? Many things we throw away could be reused.
5. Practise
Say it in a sentence
Use these starters when you talk about the lesson. Say them out loud.
- Waste is what we throw ___.
- Organic waste ___.
- Plastic does not ___.
- We make less ___.
Guided practice
Question 1. What is waste?
What we throw away.
Question 2. Name one waste at school.
Paper or a wrapper.
Question 3. What is organic waste?
Waste from plants or animals.
Independent practice
Level 1: Start
- What is waste?
- Name one waste at school.
- What is organic waste?
- Does plastic rot quickly?
- Can we make less waste?
Level 2: Grow
- Name two kinds of waste.
- Why too much waste is a problem?
- How can we make less waste?
Level 3: Stretch
- Sort ten items of waste.
- Explain why peels rot.
- Plan ways to reduce lunch waste.
Answers are in the answer key below. Try first, then check.
6. Apply: Science in everyday life
What waste does your family make?
Show a sample answer
Food scraps, bottles and paper.
Another one. Tell a family member one thing from this lesson. Use the words you learned.
Show a sample answer
A clear sentence that uses at least one word from Words to know.
7. Common mistakes
Fix: Plastic does not rot.
Fix: It stays somewhere.
8. Lesson summary and revision card
- I can say what waste is.
- I can name waste at home and school.
- I can sort waste into kinds.
- I can say why reducing waste helps.
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
- Waste is what we throw away.
- Waste comes from food, paper, plastic and packaging.
- Some waste rots and some does not.
- Less waste means a cleaner world.
11. Next lesson
Next lesson: Proper waste disposal. Keep going with the next idea in this course.
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.
- What is waste? [1 mark]
- Name three kinds of waste. [3 marks]
- Why is too much waste a problem? [2 marks]
- Give two ways to make less waste. [2 marks]
- Sort a peel, a can and a bag. [3 marks]
Total: 11 marks.
Marking guide and model answers
- What we throw away [1]
- Any three [1 each]
- Pollutes [1]; fills space [1]
- Any two [1 each]
- Peel organic [1]; can metal [1]; bag plastic [1]
Score guide: 10 to 11 = secure. 7 to 9 = nearly there, revise the parts you missed. Under 7 = work through the lesson again with a grown-up.
Printable worksheet
- What is waste?
- Name one waste at school.
- What is organic waste?
- Does plastic rot quickly?
- Can we make less waste?
- Name two kinds of waste.
- Why too much waste is a problem?
- How can we make less waste?
- Sort ten items of waste.
- Explain why peels rot.
Homework
Look at what your family throws away in a day. List and sort it. Think of one way to reduce it.
Answer key and marking scheme
| Question | Expected response | Marks |
|---|---|---|
| 1. What is waste? | What we throw away. | 1 |
| 2. Name one waste at school. | Paper or a wrapper. | 1 |
| 3. What is organic waste? | Waste from plants or animals. | 1 |
| 4. Does plastic rot quickly? | No. | 1 |
| 5. Can we make less waste? | Yes. | 1 |
| 6. Name two kinds of waste. | Organic and plastic. | 1 |
| 7. Why too much waste is a problem? | It pollutes and fills dumps. | 1 |
| 8. How can we make less waste? | Reuse things. | 1 |
| 9. Sort ten items of waste. | A sorted chart. | 1 |
| 10. Explain why peels rot. | They are organic. | 1 |
| Total | 10 |
Independent practice answers. Level 1: 1 What we throw away.; 2 Paper or a wrapper.; 3 Waste from plants or animals.; 4 No.; 5 Yes.. Level 2: 1 Organic and plastic.; 2 It pollutes and fills dumps.; 3 Reuse things.. Level 3: 1 A sorted chart.; 2 They are organic.; 3 Reusable containers..
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 Say what waste is | 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 Name waste at home and school | 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 Sort waste into kinds | 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 Say why reducing waste helps | 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: “All waste rots.” Plastic does not rot.
- Explain another way: use real objects, pictures or actions first, then words.
- Show a simpler example: Sort five wastes.
- 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 learns what waste is and why we should make less. You do not need to be an expert to help.
- Sort waste at home.
- Ask, “What can we reuse?”
- Use a reusable bottle.
- 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: say what waste is; name waste at home and school; sort waste into kinds; say why reducing waste helps.
Prerequisite knowledge. None. Learners should be able to look, listen and talk about what they notice.
Materials. Pictures of waste, bins labelled by type, gloves, chart paper. 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. Make a sorting chart. Use clean pictures. Prepare labelled bins.
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). Look at a picture of a bin and ask, “What do you see?”
Explanation (10 min). Teach waste and kinds.
Guided activity (10 min). Learners sort waste.
Independent activity (10 min). Learners plan ways to reduce it.
Assessment and reflection (5 min). Ask each learner to say one thing they learned and how they know it.
Key questions. What kind of waste is it? Can we reuse it?
Teacher explanation notes. Start with real objects and safe, hands-on observation. Then talk about what was seen, then draw and write. Always say “how do you know?”. Keep to the safety notes, and use local, safe materials.
10–12. Differentiation, formative assessment, common misconceptions
Support. Use real objects and pictures, short sentences and a partner. Let learners point, show or draw instead of writing. Extension. Ask learners to find a new example at home and explain how they know.
Formative assessment. Listen to learners read and explain, ask “how do you know?”, and check the independent work.
Misconceptions. “All waste rots.” Plastic does not rot.
13–15. Assessment questions, answer keys, marking scheme
Use the quiz, the 11-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. Sort five wastes. Enrichment. Look for one new example near your home or school, draw 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: Next Generation Science Standards, Cambridge Primary Science 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 Science curriculum, Grade 1 Unit 10, topic 5; Next Generation Science Standards, Earth and human activity; Cambridge Primary Science Stage 1, living things and their environment; IB Primary Years Programme, sharing the planet. These sources informed the lesson.