K2L18 Light Paths

Lesson Duration: 45 minutes

Grade: K2

Preparation Time: 15 minutes

Learning Objectives

1. Observe how light travels

2. Understand light blocking

3. Practice sequential thinking

Materials Needed:

- Flashlights (1 for teacher, 5-6 for activities)

- White projection screen or blank wall

- Hole-punched cards:

• 3 cards per set with different hole patterns

• 6-8 sets total

- Card holders or stands

- Simple shadow puppets

- Safe mirrors (plastic or secured glass):

• 6-8 small handheld mirrors

• 1 larger demonstration mirror

- Colored paper for light path marking

- Safety note: All materials child-safe, mirrors secured

Lesson Procedure

3 mins - Welcome Time

• Lead "Hello Song"

• Dim room lights partially

• Demonstrate flashlight beam

• Show straight light path with beam

5 mins - Discovery Chat

• Display single hole-punched card

• Show light beam passing through

• Create light path on floor with colored paper

• Point out light direction

7 mins - Hands-On Challenge 1: Light Path Discovery

• Position three cards in sequence

• Demonstrate light passing through aligned holes

• Show how misalignment blocks light

• Mark successful light paths

• Invite children to predict light paths

• Guide children in card alignment

12 mins - Hands-On Challenge 2: Shadow Theatre

Part 1 (6 mins):

• Set up simple puppet screen

• Create clear light path

• Show puppet shadow formation

• Demonstrate light positioning

Part 2 (6 mins):

• Guide puppet handling

• Help position light source

• Support shadow creation

• Lead simple story sequence

12 mins - Hands-On Challenge 3: Lens Exploration

Part 1 (6 mins):

• Introduce different lenses

• Show light bending effects

• Compare path changes

• Mark different paths

Part 2 (6 mins):

• Guide lens testing

• Help track light paths

• Support predictions

• Lead comparison activities

3 mins - Wrap-Up

• Create one final light path together

• Turn lights back on gradually

• Lead goodbye song

### Safety Notes:

- Maintain partial lighting

- Secure all mirrors properly

- Keep movement areas clear

- Ensure careful mirror handling

- Maintain constant supervision

Reference

For better understanding of forest animal homes and to enrich your teaching preparation, please watch these reference videos:

https://www.youtube.com/watch?v=c21xZqGtjXI

https://www.youtube.com/watch?v=eeqHVvg1Qig

https://www.youtube.com/watch?v=nwzshqLCRPI

https://www.youtube.com/watch?v=z-3KQvceLGA&t=68s

https://www.youtube.com/watch?v=YuUJCNzfoBw

https://www.youtube.com/watch?v=lOIGOT88Aqc

https://www.youtube.com/watch?v=fy7eoMef3e8

Important:
• These videos are for teacher reference only and should not be shown directly to students
• Instead, extract key concepts and adapt them to K1 level using:

Simple vocabulary
Clear, brief explanations
Age-appropriate examples
• Use the provided lesson PowerPoint images to support your teaching
• Focus on interactive demonstration and hands-on activities rather than passive viewing
• Keep explanations concrete and relatable to young learners' experiences

PowerPoint Presentation

Slide 1: Title
Title (font size 60): "Light Path Adventure!"
Visuals:
• Animated light beam traveling along a path
Teacher Talk: "Hello friends! Let's follow the light!"
Safety Note: "Remember to be gentle with light equipment"

Slide 2: Meet Ray the Light Beam
Title (font size 48): "Meet Ray!"
Visuals:
• Friendly light beam character
• Simple straight path illustration
Text:
• "This is Ray the Light Beam!"
• "Ray travels in straight lines!"
• "Can you point where Ray goes?"
Safety Note: "Never look directly at light sources"

Slide 3: Light Journey
Title (font size 48): "How Light Travels"
Content text (font size 36): "Light likes straight paths!"
Visuals:
• Light beam through single hole
• Straight path markers
Text:
• "Watch the light travel!"
• "It goes straight through!"
• "Let's follow the light path!"
Safety Note: "Walk carefully in dim light"

Slide 4: Magic Words
Title (font size 48): "Light Path Words"
Content text (font size 36):
• "STRAIGHT! ➡️"
• "BLOCKED! ⬛"
Visuals:
• Light passing through aligned holes
• Light blocked by misaligned cards
Text:
• "Light travels straight!"
• "Blocks stop the light!"
• "Let's say: STRAIGHT! BLOCKED!"

Slide 5: Three Card Challenge
Title (font size 48): "Light Through Cards"
Visuals:
• Three cards with holes
• Light path through aligned holes
Text:
• "Can light pass through?"
• "Let's line up the holes!"
Safety Note: "Handle cards carefully"

Slide 6: Shadow Theatre Time
Title (font size 48): "Theatre Magic!"
Visuals:
• Puppet screen setup
• Light path to screen
Text:
• "Watch the light make shadows!"
• "Where should we put the puppet?"
• "Let's make a story!"
Safety Note: "Keep space between friends"

Slide 7: Lens Discovery
Title (font size 48): "Bending Light!"
Visuals:
• Different lenses
• Bent light paths
Text:
• "Look how light bends!"
• "Try different lenses!"
• "Where will the light go?"
Safety Note: "Handle lenses gently"

Slide 8: Path Prediction
Title (font size 48): "Where Will Light Go?"
Visuals:
• Various path setups
• Direction arrows
Text:
• "Can you guess the path?"
• "Let's test our ideas!"
• "Follow the light!"
Safety Note: "Move slowly around equipment"