Characteristics of Living Things

Active learning transforms how students grasp cell structure by moving beyond static diagrams. Hands-on modeling and role play let learners visualize organelles in context, turning abstract concepts into tangible understanding.

• Year 7
• Science
• 3 activities
• 15 min–40 min

Learning Objectives

1. Classify objects and organisms as either living or non-living based on established criteria.
2. Explain the function of each of the seven life processes in maintaining an organism's survival.
3. Compare and contrast the characteristics of a plant cell and an animal cell, identifying key organelles.
4. Analyze the potential consequences for an organism if one of its essential life processes stops functioning.
5. Identify the basic needs of living organisms, including food, water, and air.

Role Play

⏱ 40 min·Whole Class

Role Play: The Living Cell

Assign students different organelle roles and have them act out a cellular process, such as protein production or energy release. They must interact with one another to show how the nucleus sends instructions to other parts of the cell.

Prepare & details

Differentiate between the characteristics of living and non-living things.

Facilitation Tip: During the Role Play: The Living Cell, assign students organelles and have them physically arrange themselves to show spatial relationships in 3D space.

Setup: Open space or rearranged desks for scenario staging

Materials: Character cards with backstory and goals, Scenario briefing sheet

• Apply
• Analyze
• Evaluate
• Social Awareness
• Self-Awareness

Gallery Walk

⏱ 30 min·Small Groups

Gallery Walk: Organelle Advertisements

Small groups create posters 'selling' the importance of a specific organelle to the cell. Students walk around the room with a checklist to identify which organelle is most vital for survival based on the evidence presented.

Prepare & details

Analyze how the seven life processes are essential for an organism's survival.

Facilitation Tip: In the Gallery Walk: Organelle Advertisements, rotate groups so every student contributes feedback on at least two posters using sticky notes with specific praise or questions.

Setup: Wall space or tables arranged around room perimeter

Materials: Large paper/poster boards, Markers, Sticky notes for feedback

• Understand
• Apply
• Analyze
• Create
• Relationship Skills
• Social Awareness

Think-Pair-Share

⏱ 15 min·Pairs

Think-Pair-Share: Plant vs Animal

Students independently list features of a cell shown in a diagram, then pair up to debate why certain features like the cell wall are only found in plants. They then share their conclusions on how these structures support the plant's lifestyle.

Prepare & details

Predict the consequences for an organism if one of its life processes ceases.

Facilitation Tip: For Think-Pair-Share: Plant vs Animal, provide unlabeled cell diagrams to pairs and have them annotate differences before sharing with the class.

Setup: Standard classroom seating; students turn to a neighbor

Materials: Discussion prompt (projected or printed), Optional: recording sheet for pairs

• Understand
• Apply
• Analyze
• Self-Awareness
• Relationship Skills

Teaching This Topic

Teachers should emphasize modeling as a core strategy. Research shows physical models improve spatial reasoning, so use clay, balloons, or digital tools to build cells. Avoid rushing through organelle functions; instead, connect each to real-world survival needs like energy production or protection. Use analogies carefully, ensuring students understand their limits. Always follow modeling with structured discussion to solidify understanding.

What to Expect

Students will confidently identify key organelles, compare plant and animal cells, and explain how structure supports function. They will articulate misconceptions and correct peers using evidence from activities.

Watch Out for These Misconceptions

Common Misconception

During the Role Play: The Living Cell, watch for students treating cells as flat structures when arranging themselves.

What to Teach Instead

Use string or hula hoops to mark cell boundaries and ask students to position themselves inside or outside these spaces to show organelle placement in 3D.

Common Misconception

During the Gallery Walk: Organelle Advertisements, watch for students conflating the cell wall and membrane as the same structure.

What to Teach Instead

Have students highlight the word 'rigid' on plant cell posters and 'selective' on animal cell posters, then discuss why each term fits its function.

Assessment Ideas

Quick Check

After the Role Play: The Living Cell, provide a list of items including a sponge, a virus particle, and a daisy. Ask students to sort these into living and non-living and justify their choices based on life processes observed in the role play.

Exit Ticket

During the Think-Pair-Share: Plant vs Animal, collect each pair’s annotated diagrams and use them to assess whether students accurately identified key differences like chloroplasts or cell walls.

Discussion Prompt

After the Gallery Walk: Organelle Advertisements, pose the question: 'If the nucleus stopped working, which organelle would be most affected and why?' Use student responses to assess their understanding of interdependence among organelles.

Extensions & Scaffolding

• Challenge students to design a new organelle that could help a cell survive in an extreme environment, explaining its structure and function.
• Scaffolding for struggling learners: Provide a partially labeled cell diagram with word banks and sentence stems for describing functions.
• Deeper exploration: Have students research a disease caused by organelle dysfunction, such as mitochondrial disorders, and present their findings with a focus on how structure affects function.

Key Vocabulary

Metabolism	The sum of all chemical processes that occur within a living organism in order to maintain life. This includes breaking down nutrients and building up complex molecules.
Reproduction	The biological process by which new individual organisms, 'offspring', are produced from their 'parents'. This ensures the continuation of a species.
Homeostasis	The ability of an organism to maintain a stable internal environment, such as body temperature or blood sugar levels, despite changes in the external environment.
Irritability	The ability of an organism to detect and respond to stimuli in its environment. This allows organisms to react to danger or find resources.