Exploring Reflection

Overview

This 60-minute lesson is lesson 2 of 5 in the unit "Light and Shadows Exploration" for Year 3 students. It is designed in line with the National Curriculum for England, specifically focusing on the science programme of study for Key Stage 2 (Years 3–4), under the topic of "Light". The lesson enables pupils to observe and investigate how light reflects off different surfaces, fostering an understanding of reflection and real-life applications.

National Curriculum Links

Science Programme of Study: Year 3 & 4 – Light
Pupils should:

Recognise that they need light in order to see things and that dark is the absence of light.
Notice that light is reflected from surfaces.
Understand that light from the sun can be dangerous and that there are ways to protect their eyes.
Understand that shadows are formed when the light is blocked by an opaque object.
Find patterns in the way that the size of shadows change.

This Lesson Targets:

Notice that light is reflected from surfaces.
Understand and observe how light changes direction when it hits different surfaces.

Learning Objectives

By the end of the lesson, pupils will be able to:

Define reflection in their own words.
Describe how light changes direction when it strikes different surfaces.
Investigate and record observations of reflected light using mirrors and shiny objects.
Identify surfaces that reflect light well and those that do not.
Explain a simple real-life example of reflection.

Curriculum Competencies Addressed

Scientific enquiry: Observing closely and recording data.
Reasoning: Drawing simple conclusions from observations.
Vocabulary development: Using terms such as light, reflection, mirror, surface, shiny, dull, bounce back.

Resources Needed

Small handheld mirrors (at least 6)
Objects with a variety of surfaces (metal spoons, shiny foil, white paper, black card, fabric, plastic)
Torches (one per group, preferably LED ones with adjustable beams)
Plain white paper or light-coloured boards for observing light beams
Worksheets for recording observations (simple table with columns: Object/Surface, Reflection Observed, Description)
Whiteboard and markers
Safety glasses (optional, for eye protection from torches)

Lesson Structure

1. Starter Activity (10 minutes)

Engage and recall

Begin with a quick recap of Lesson 1 (Light sources and shadows).
Ask: Where does light come from? Can you see in the dark?
Introduce the word "reflection". Write it on the board and ask if anyone heard it before.
Show a torch and a mirror briefly and ask what might happen when light shines on the mirror.
Discuss briefly: What do you think happens to the light when it hits shiny surfaces?

WOW Factor:
Do a simple magic trick – shine the torch on a mirror and angle it so the light 'bounces' in the room. Let pupils watch fascinated by light movement.

2. Main Activity (40 minutes)

Guided practical investigation in groups (5-6 pupils per group)

Step A: Predict (5 mins)

Hand out worksheets.
Ask groups to look at their objects and predict which will reflect light well and which won’t. Record predictions.

Step B: Experiment (25 mins)

Each group uses the torch, reflects light off each object onto white paper or walls.
Pupils observe whether the light beam is clear and bright, faint, or non-existent.
Record observations carefully on their worksheet.
Encourage pupils to try changing angles and record how the reflection angle changes.
Circulate and facilitate, helping make connections between angle of incidence and angle of reflection (using simple language: angle light coming in = angle light goes out).

Step C: Group Sharing and Classification (10 mins)

Gather the class on the carpet with objects classified into “Good Reflectors” and “Poor Reflectors” based on observations.
Discuss why some materials reflect light better than others (smooth and shiny surfaces reflect better).

3. Plenary and Assessment (10 minutes)

Recap key vocabulary: reflection, surface, mirror, shine, dull. Use a quick quiz or flashcard activity.
Ask individual pupils to share one thing they learned about reflection today.
Ask: Can anyone think of something in their everyday life that uses reflection? (e.g., mirrors, car headlights, kaleidoscopes)
Check worksheets to assess if pupils understood the experiment and could link surface properties with reflection quality.

Differentiation Strategies

For SEN/EAL pupils: Provide pictures and labelled objects to support vocabulary; pair with a confident peer; use simple sentence starters for recording.
For higher attainers: Challenge them to explain why light reflects more on some surfaces using the language "angle of incidence" and "angle of reflection".
Use questioning to scaffold understanding as needed.

Safety Considerations

Remind pupils to never shine torches directly into one another's eyes.
Carefully handle mirrors to avoid breakage and injury.

Follow-Up Ideas

Encourage pupils to observe reflections at home (e.g., mirrors, water surfaces, shiny cars) and bring examples to class.
Prepare for the next lesson (lesson 3) on "Shadow Patterns and Light Source Movement" by noting how reflected light changes with position.

Teacher Reflection

Were pupils engaged during the practical activity?
Did they successfully link observations to the concept of reflection?
Were misconceptions about reflection addressed promptly?
How did the group work support independent enquiry skills?

This lesson plan integrates enquiry-based learning, aligns directly with statutory curriculum objectives, and provides hands-on discovery designed specifically for 7-8 year olds. It balances practical experiences and scientific language development for a rich, memorable understanding of reflection.

Teaching Instructions