Choose your LOs and differentiated tasks using
the terminology below.
5 TO START
1 Why does the reflection seem to go on forever?
2
3
4
5
1 min 2 mins 3 mins 4 mins 5
You have 5 mins to attend your classroom on time, enter in a quiet and orderly manner, sit where you are
told without argument, have equipment out ready for learning and complete the settler activity in silence.
7Jb - Reflection
@ASCSdubai
What will I learn today? @ASCSdubai
Scientific Vocabulary
Learning Objective - To Reflection
Understand and apply the Law of Reflection to explain how light
interacts with different surfaces and forms images Incident/Reflected Ray
Angle of
Incidence/reflection
Success Criteria – I can
✅ Describe how light reflects off surfaces using the Law of Scattered
Reflection (angle of incidence = angle of reflection).
✅ Differentiate between specular reflection and diffuse Specular Reflection
reflection.
✅ Explain how images form in plane mirrors. Diffuse Reflection
✅ Apply their knowledge to real-life scenarios (e.g., the Salar de
Uyuni effect).
Lesson Plan
Starter - @ASCSdubai
Scientific Vocabulary
Reflection
Incident/Reflected Ray
Angle of
Incidence/reflection
Scattered
Specular Reflection
Diffuse Reflection
Lesson Plan
Reflection @ASCSdubai
Success Criteria
Use the laser pointers and mirror to explore the
concept of reflection.
I can differentiate
between specular
reflection and
diffuse reflection.
Lesson Plan
Equal Angles
Angle of Incidence Angle of Reflection
Mirrored Surface
Rules of Light Reflection
The law of reflection describes the relationship between the incident angle, the reflected
angle and the normal (a line perpendicular to the surface) when light is reflected off a
surface.
The law of reflection is applicable to both specular (smooth) and diffuse (rough) surfaces.
Incident Light Ray: The incoming light ray (incident ray) strikes
a surface. Angle of Angle of
Normal Line: The normal is an imaginary line perpendicular to Incidence Reflection
the surface at the point where the light ray strikes. In
c id Normal
y
Angle of Incidence: The angle between the incident ray and e
Ra
nt
d
R
te
the normal. ay
ec
i°
fl
r°
Re
Reflected Light Ray: The light ray that reflects off the surface.
Angle of Reflection: The angle between the reflected ray and
the normal. Mirror
Think Pair Share @ASCSdubai
Success Criteria
I can differentiate
between specular
reflection and
diffuse reflection.
What is the difference between the two types pf
reflection?
•Why do mirrors reflect clear images but paper
doesn’t?
Lesson Plan
Scattered and Reflected Light
Completely smooth surfaces like Rougher surfaces scatter
a mirror will reflect light in a light in many different
specific direction. This is called directions – this is called a
as specular reflection. diffuse reflection.
Paper
Mirror
Mirror Maze Challenge! @ASCSdubai
Thinking questions –
Use a mirror’s reflection to locate a hidden object and explore
how images appear in mirrors!
Task Instructions
1. Partner A closes their eyes (no peeking! 👀❌).
•How does the object appear
2. Partner B places the object behind the mirror (out of direct in the mirror?
sight). •What do you notice about
3. Partner A opens their eyes and must use the mirror’s left and right in the mirror?
reflection to locate and touch the object without turning How would this work with a
the mirror. larger mirror? What if you
4. Switch roles and repeat! had two mirrors?
Lesson Plan
Rules of Light Reflection
Angle of Incidence = Angle of Reflection
• The reflection in a plane mirror
is the same size as the object.
• The reflected image is as far
behind the mirror surface as the
object is in front.
• Everything in the reflected image
is laterally inverted.
Differentiation Grid: @ASCSdubai
Group One
Match-Up Activity: Reflection Terms
👉 Instructions: Match each term on the left with its correct definition on the right by drawing a
line or writing the correct letter in the box.
Lesson Plan
Differentiation Grid: @ASCSdubai
Group Two
Lesson Plan
Differentiation Grid: @ASCSdubai
Group Three
Using a protractor, draw and label the
normal line and the reflected ray for
each diagram below.
Measure and label the angle of
incidence and the angle of reflection.
Lesson Plan
Differentiation Grid: @ASCSdubai
Group Four
Lesson Plan
Differentiation Grid: @ASCSdubai
Group Five
•Why does the Salar de Uyuni only reflect on
certain days?
•Why don’t we see reflections in the ocean
like we do in mirrors?
Lesson Plan
Plenary – Fact or Myth @ASCSdubai
Success Criteria –
1⃣ The angle of incidence is always equal to the angle of reflection.
Describe how light reflects
2⃣ Diffuse reflection occurs only on mirrors. off surfaces using the Law
of Reflection
3⃣ Plane mirrors produce images that are the same size as the
object. Differentiate between
specular reflection and
4⃣ Mirrors flip images upside down. diffuse reflection.
5⃣ You can see your reflection on any surface. Explain how images form in
plane mirrors.
6⃣ The Salar de Uyuni reflects the sky because of its smooth
glass-like surface covered in water. Apply their knowledge to
real-life scenarios (e.g., the
7⃣ A periscope works because of multiple reflections. Salar de Uyuni effect).
8⃣ Light bounces off a mirror at random angles.
Lesson Plan
