Science Lesson Kit · Teacher Resource
Light Reflection & Vision — 5E Lesson Plan
Physical Science · 45 minutes
Grade 4
5E lesson flow
01
Engage
6 min
Teacher Does
Compare visibility with light present and blocked.
Students Do
Observe what changes.
Ask
- What must reach the eye?
Look For
Light entering the eye.
02
Explore
12 min
Teacher Does
Guide safe mirror-spot observations.
Students Do
Predict, turn the mirror, and record the spot.
Ask
- What changed when only the mirror changed?
Look For
The reflected spot moves.
03
Explain
8 min
Teacher Does
Build source → object → eye and reflected-ray models.
Students Do
Add directional arrows and vocabulary.
Ask
- Which way does each arrow point?
Look For
No arrows leaving the eye.
04
Elaborate
12 min
Teacher Does
Run a qualitative mirror target challenge.
Students Do
Predict, test, adjust, and cite the light spot as evidence.
Ask
- What observation supports your claim?
Look For
Orientation changes direction.
05
Evaluate
7 min
Teacher Does
Present an eye-outward misconception and a ray-model limitation.
Students Do
Correct and explain the models.
Ask
- Why is the eye-outward arrow wrong?
Look For
Eyes receive light; ray lines are representations.
Student goal
I can model how reflected light enters the eye and use mirror observations as evidence.
Learning objectives
- Develop a model showing that an object is seen when reflected light enters the eye.
- Use mirror observations as evidence that changing mirror orientation changes reflected-light direction.
- Identify one limitation of a ray diagram as a model.
Materials
- Low-power classroom flashlight
- Stable target
- Preferably unbreakable mirror
- Book or other object
- Dark box model
- Recording sheet
Before class
- Keep all light paths below eye level.
- Use stable, preferably unbreakable mirrors.
- Never aim direct or reflected beams at eyes.
- Prepare source, object, and eye model cards.
- Open Teach Mode.
Prior knowledge
- Light travels from sources.
- Mirrors reflect light.
Vocabulary
- light source
- An object or process that produces light.
- reflect
- To bounce light from a surface into a new direction.
- ray
- A line in a model used to show the direction light travels.
- mirror
- A smooth surface that reflects much of the light that reaches it.
- vision
- Seeing when light enters the eye and the visual system processes that information.
- direction
- The path along which something travels or points.
Differentiation
- Use color-coded source, object, and eye cards.
- Provide partially completed ray diagrams.
- Allow oral explanation paired with drawing.
- Offer a second safe target challenge for extension.
Assessment
- Check arrow direction.
- Check dark-box explanation.
- Check mirror evidence and model limitation.
Exit ticket
Draw source → object → eye and explain how the object becomes visible.
Extension
Design a safe mirror target test and explain how adjustments changed the reflected path.