Human Body Organs

Overview

This 50-minute lesson introduces Year 3 students to the major organs in the human body, focusing on recognising organ names, locations, and functions. The lesson is designed to meet the Curriculum for Excellence (CfE) Level 2 standards in Science, specifically relating to "Life and Cells" and "Organ Systems".

Curriculum for Excellence Links

Experiences and Outcomes (Es & Os):

SCN 2-12a: I can describe the basic functions of major organs in the human body and understand how they contribute to my overall health.
SCN 2-11a: I can explore how my body reacts and adapts to activities, and explain the role of different body parts and organs in these processes.

Benchmarks / Success Criteria in CfE Language:

Shows understanding of the main organs of the body.
Can explain the simple function of at least 4-5 organs.
Demonstrates curiosity about body health.

WALT (We Are Learning To)

Identify key organs in the human body.
Describe the main function of each organ.
Understand how these organs work together to keep us healthy.

Success Criteria

I can name at least five major organs.
I can say what each organ does in simple terms.
I can locate each organ on a body diagram.
I can explain why these organs are important for health.

Resources Needed

Large body outline posters or whiteboard outline of the human body
Cards with organ names and simple fun organ fact graphics
Plastic organ models or 3D paper cutouts (optional)
Dyslexia-friendly body organ fact sheets (simple font, colour-coded sections)
Coloured pencils or markers
Interactive whiteboard or projector

Lesson Activities

1. Starter: Organ Guessing Game (10 minutes)

Show a silhouette of the human body on the board.
Present mystery clues about an organ’s function (e.g., "I pump blood all around your body").
Students guess the organ (heart, lungs, stomach, brain, etc.).
Write organ names on the board as they are guessed.
Differentiation: Provide picture hints for learners who need visual support.

2. Mini Presentation: Organ Functions (10 minutes)

Present 5 key organs: heart, lungs, brain, stomach, liver.
Use dyslexia-friendly fact sheets, large print and colour coding to explain each organ’s job.
Show plastic models or visuals to reinforce learning.
Encourage students to ask questions.

3. Group Activity: Organ Placement (15 minutes)

Divide class into groups of 5-6.
Each group gets a large blank human body outline poster.
Provide organ name cards and pictures.
Groups place the organs in correct positions, then draw arrows showing organ function briefly.
Circulate and support groups needing extra help.

Differentiation: Groups with learners experiencing difficulties can work on just 3 major organs with picture prompts.
Extension: Advanced learners research an extra organ (e.g., kidneys or intestines) and present a fact at the end.

4. Interactive Quiz (10 minutes)

Use an interactive whiteboard quiz or quick round-robin Q&A asking about organ positions and functions.
Children answer with thumbs up/down or hold up organ cards.
Peer feedback encourages discussion and correction.

5. Plenary / Reflection (5 minutes)

Ask students to share one new fact they learned about their body today.
Recap success criteria and self-assess.
Provide homework task option to draw their favourite organ and write one sentence about it.

Differentiation Strategies

Provide visual/haptic aids (models, pictures) for concrete learning.
Simplify language and instructions in fact sheets for learners with English as an additional language or learning difficulties.
Give extra time and small group support where needed.
Use peer mentoring within groups.
Dyslexia-friendly resources include: sans-serif font (e.g., Arial), larger spacing, clear background colours, and colour-coded organ facts to aid memory.

Extension Activities for Advanced Learners

Research and present an additional organ’s function, such as kidneys, intestines or skin.
Construct a simple “body organ system” model using craft materials.
Explore how organs interact: e.g., how heart and lungs work together to supply oxygen to the body.

Assessment

Formative:

Observation during group activity and quiz participation.
Questioning during presentation and plenary to measure understanding.
Self and peer-assessment linked to success criteria.

Summative:

Optional follow-up worksheet identifying organs and writing a simple sentence about function, marking for accuracy and comprehension.

This lesson embraces active, multi-sensory learning aligned fully with CfE principles, fostering curiosity, foundational scientific understanding, and accessible inclusion.

Teaching Instructions