You will learn

  • Recall key ideas.
  • Connect concepts.
  • Answer exam-style questions.
  • Revise independently.

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

The lesson in 60 seconds

  1. Living things are classified by features.
  2. Cells are the basic unit of life.
  3. Cells form tissues, organs and systems.
  4. Body systems work together.

Words to know

classification
sorting living things into groups
organelle
a small part inside a cell with a job
tissue
a group of similar cells doing one job
organ system
organs working together

1. Discover: The concept map

Ms Frempong draws the word “cell” in the middle of the board. The class adds branches: tissue, organ, system, organism, and then classification and biodiversity. “See how it all connects?” she says.

Think: What link could you add from the immune system?

2. Understand: Living things

Idea 1: Levels

Cells combine into tissues, tissues into organs, organs into organ systems and systems into an organism. Each organelle in a cell has a job, for example the nucleus controls the cell and mitochondria release energy.

Idea 2: Classification

Classification sorts organisms into kingdoms, phyla and further groups by shared features. Biodiversity is the variety of life, and it supports healthy ecosystems.

Idea 3: Body systems

Digestive, respiratory, circulatory, skeletal, muscular, nervous and immune systems cooperate: for example, muscles need oxygen from the lungs and blood and signals from the nerves.

Remember: Life science ideas connect from cells to systems to ecosystems.

3. Worked examples

Example 1 (I show you): Sequence

Levels.

  1. Cell.
  2. Tissue.
  3. Organ.

Answer: Order.

Example 2 (We do it together): Match

Organelle.

  1. Nucleus.
  2. Mitochondria.
  3. Job.

Answer: Match.

Example 3 (You try): Link

Systems.

Show the steps and answer
  1. Heart.
  2. Lungs.
  3. Blood.

Answer: Cooperate.

Did you know?

An adult human has trillions of cells made of over 200 different types.

Why this matters

These ideas are the foundation of secondary biology.

4. Explore: Concept map

Make a concept map of life science with at least 15 terms and 15 labelled links, then swap and explain it to a partner.

  1. List terms.
  2. Draw links.
  3. Label links.
  4. Explain.
Think about it: what did you notice?

What did you notice? Many terms linked in more than one way.

Safety first: Use pencils and rulers carefully. Cut cards with safety scissors only. Pick up scraps. Be kind about each other’s drawings.

5. Practise

Say it in a sentence

Use these starters when you talk about the lesson. Say them out loud.

  • ___ is sorting living things into groups.
  • An ___ is a small part inside a cell with a job.
  • A ___ is a group of similar cells doing one job.
  • An organ ___ is organs working together.

Guided practice

Question 1. Basic unit of life?

Cell.

Question 2. Nucleus job?

Control.

Question 3. Mitochondria job?

Energy.

Independent practice

Level 1: Start

  1. Basic unit of life?
  2. Nucleus job?
  3. Mitochondria job?
  4. Group of cells?
  5. Heart is?

Level 2: Grow

  1. Why systems cooperate?
  2. Why classify?
  3. Why biodiversity?

Level 3: Stretch

  1. Map it.
  2. Match.
  3. Explain.

Answers are in the answer key below. Try first, then check.

6. Apply: Science in everyday life

Explain how two body systems work together.

Show a sample answer

Use an example.

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

Mistake: “Only animals have cells.”
Fix: All living things.
Another mistake: “Systems work alone.”
Fix: Together.

8. Lesson summary and revision card

I can…

  • I can recall key ideas.
  • I can connect concepts.
  • I can answer exam-style questions.
  • I can revise independently.

9. Check and master

Answer all 14 questions. You will see feedback after each one.

1. The basic unit of life is the …

2. The nucleus … the cell

3. Mitochondria release …

4. Similar cells form a …

5. Organs form organ …

6. Classification groups by shared …

7. We use pencils and rulers …

8. We cut with safety …

9. We pick up …

10. We are … about each other’s drawings

11. An adult has over … types of cells

12. Biodiversity supports healthy …

Challenge 1. Which is an organ?

Challenge 2. Which two systems cooperate?

Your result appears here after you answer every question.

10. Key takeaways

  • Living things are classified by features.
  • Cells are the basic unit of life.
  • Cells form tissues, organs and systems.
  • Body systems work together.

11. Next lesson

Next lesson: Matter review. 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.

  1. Define tissue and organelle. [2 marks]
  2. Order cell levels. [3 marks]
  3. Explain how two systems cooperate. [3 marks]
  4. Safety rule. [2 marks]

Total: 10 marks.

Marking guide and model answers
  1. 1 each
  2. Cell, tissue [1]; organ, system [1]; organism [1]
  3. System one [1]; system two [1]; link [1]
  4. Any [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

  1. Basic unit of life?
  2. Nucleus job?
  3. Mitochondria job?
  4. Group of cells?
  5. Heart is?
  6. Why systems cooperate?
  7. Why classify?
  8. Why biodiversity?
  9. Map it.
  10. Match.

Homework

Revise using your concept map.

Answer key and marking scheme

Question Expected response Marks
1. Basic unit of life? Cell. 1
2. Nucleus job? Control. 1
3. Mitochondria job? Energy. 1
4. Group of cells? Tissue. 1
5. Heart is? Organ. 1
6. Why systems cooperate? Survive. 1
7. Why classify? Order. 1
8. Why biodiversity? Healthy ecosystems. 1
9. Map it. Map. 1
10. Match. Cards. 1
Total 10

Independent practice answers. Level 1: 1 Cell.; 2 Control.; 3 Energy.; 4 Tissue.; 5 Organ.. Level 2: 1 Survive.; 2 Order.; 3 Healthy ecosystems.. Level 3: 1 Map.; 2 Cards.; 3 Sentence..

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 Recall key ideas 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 Connect concepts 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 Answer exam-style questions 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 Revise independently 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

  1. Find the misconception: “Only animals have cells.” All living things.
  2. Explain another way: use real objects, pictures or actions first, then words.
  3. Show a simpler example: Link life science ideas.
  4. Guided practice: work through one example together and let the learner try the next one.
  5. Reassess: use the quiz again or the worksheet.
  6. Move on when the learner shows Silver-level evidence independently.

For parents and guardians

In this lesson your child revises Grade 6 life science. You do not need to be an expert to help.

  • Quiz your child.
  • Ask “How are they linked?”
  • Celebrate effort.
  • 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: recall key ideas; connect concepts; answer exam-style questions; revise independently.

Prerequisite knowledge. Grade 6 ideas: Units 1 to 11 of Grade 6 Science.

Materials. Paper, pencils, rulers. 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. Copy term lists.

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). Draw cell in the middle and ask, “What connects to it?”

Explanation (10 min). Teach the review.

Guided activity (10 min). Learners map.

Independent activity (10 min). Learners explain.

Assessment and reflection (5 min). Ask each learner to say one thing they learned and how they know it.

Key questions. How are the ideas linked?

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. “Only animals have cells.” All living things.

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. Link life science ideas. 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 6 Unit 12, topic 3; Next Generation Science Standards, science and engineering practices; Cambridge Lower Secondary Science, thinking and working scientifically; IB Primary Years Programme, how we express ourselves. These sources informed the lesson.

Scroll to Top