Shadows and Sunshine: Exploring Light and Perspective

Grade Level: 4th Grade

Subject: Science – Physical Science / Visual Perception

Duration: 60 Minutes

Objective: Students will explore how light creates shadows, how shadows change with the position of a light source, and how perspective affects what we see.

Materials Needed

• Whiteboard or chalkboard

• Markers or chalk

• A small object (e.g., toy figure, pencil)

• Flashlight or lamp

Lesson Plan Outline

1. Engagement Activity: Shadow Guessing Game (10 Minutes)

Say: “Have you ever tried to run away from your shadow or step on someone else’s?”

Ask: “What is a shadow? Why do we only see them at certain times of day?”

Do: Write SHADOW in large letters on the board, then invite students to shout out ideas for all the things they know about them. Build a quick word web of their responses.

Ask: “Can shadows move? Can they disappear? What controls them?”

Say: “Today we’re going to become shadow scientists. We’ll learn how light creates shadows and how moving the light—or ourselves—changes what we see.”

2. Demonstration and Direct Instruction: How Light Creates Shadows (10 Minutes)

Do: Using a flashlight and a small object, perform a live demonstration. Hold the flashlight directly above the object.

Ask: “What do you notice about the shadow?”

Do: Move the light to the side.

Ask: “What’s different now?”

Do: Bring the light closer or farther away.

Ask: “How does that affect the shadow?”

Do: Draw a quick diagram on the board showing the light source, object, and shadow.

Say: “Light always travels in straight lines. When something blocks the light, it creates a dark shape behind it—a shadow.”

Do: Introduce the following vocabulary:

• Light source: where light comes from

• Shadow: a dark shape caused by something blocking light

• Perspective: how your position changes what you see

Ask: “Have you noticed your shadow changes throughout the day? Why do you think that happens?”

3. Class Discussion and Visual Mapping: Shadows Over Time (10 Minutes)

Do: On the board, draw three stick figures and label them as 9 a.m., noon, and 3 p.m. You can also invite the students to draw this diagram on paper along with you. 

Ask: “Where would the sun be in each of these times?” Have students point or explain. Draw a sun by each of the stick figures based on where it would be at roughly that time. 

Then: “What would the shadow look like in each?”

Do: Draw the shadows on each image, and let students help draw each shadow onto their sketches.

Say: “As the sun moves across the sky, your shadow changes length and direction. That’s because the light is changing position.”

Do: Connect this to real-world examples like these:

• Long shadows at sunrise or sunset

• No shadow under feet at noon

• Car headlights make shadows at night

4. Guided Practice: Shadow Detective Scenarios (15 Minutes)

Say: “Now let’s see how well you can imagine shadows in action.”

Do: Read these short, descriptive scenes aloud, one at a time, and ask the questions that follow:

Scene 1: “A child is standing near a campfire at night. The fire is low behind them.”

• “Where is the light coming from?”

• “Where would the shadow fall?”

• “Would it be long, short, in front of or behind the object?”

Scene 2: “A tree stands alone in a field at noon.”

• “Where is the light coming from?”

• “Where would the shadow fall?”

• “Would it be long, short, in front of or behind the object?”

Scene 3: “You’re walking home at sunset with the sun behind you.”

• “Where is the light coming from?”

• “Where would the shadow fall?”

• “Would it be long, short, in front of or behind the object?”

Do: Encourage students to act it out at their desks, gesture with their hands, or even sketch in the air.

5. Interactive Wrap-Up: Living Shadow Theater (10 Minutes)

Say: “We’re going to act out shadows and light!”

Do: Invite a volunteer to stand in front of the room as an “object.” Choose a student to act as the “sun” or “light source.” Have the “sun” walk to different parts of the room.

Ask: “Where would the shadows fall now?”

Do: Invite a third volunteer to act as the shadow. 

Ask: “What changed even though the object stayed still?”

Say: “Even though the object didn’t move, the shadow changed because the light moved.”

Ask: “What surprised you most about shadows today?”

Assessment

Observe student participation and discussion throughout the lesson

Listen for accurate vocabulary use (shadow, light source, perspective)

Look for thoughtful reasoning during imaginary shadow scenarios and demonstrations

Written by Rachel Jones
Education World Contributor
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