Exploring Our World: Local and Global Connections · 2nd Year

Active learning ideas

Day and Night Explained

Active learning transforms the abstract idea of Earth's rotation into something students can see and feel. When second-graders handle a globe and torch, they move from guessing to knowing how day and night happen. These hands-on moments build lasting understanding and spark curiosity about the world around them.

• NCCA Curriculum Specifications
• NCCA: Primary - Planet Earth in space
• NCCA: Primary - Weather

• 20–45 min
• Pairs → Whole Class
• 4 activities

Activity 01

• Simulation Game
• 30 min · Whole Class

Demonstration: Globe and Torch Rotation

Place a globe on a stand and shine a torch as the Sun from one spot. Slowly rotate the globe westward to show day sweeping across a marked Ireland location, then night following. Have students predict outcomes for different spots and discuss as a class.

Explain why it is dark at night and bright during the day.

Facilitation Tip

During the Globe and Torch Rotation, keep the torch fixed and guide students to slowly spin the globe to see the light shift from one side to the other, emphasizing the Sun stays in place.

What to look for

Provide students with a diagram showing the Earth, Sun, and a point on Earth. Ask them to label the part experiencing day and the part experiencing night, and to write one sentence explaining why this happens.

• Apply
• Analyze
• Evaluate
• Create
• Social Awareness
• Decision-Making

Activity 02

• Simulation Game
• 45 min · Small Groups

Small Groups: Shadow Clock Stations

Set up stations with sticks in playdough on paper plates to mimic sundials. Groups place them outdoors hourly, marking shadow tips and noting changes. Back inside, they connect shorter midday shadows to Sun overhead and longer evening ones to rotation.

Analyze how the sun seems to move across the sky during the day.

Facilitation Tip

At each Shadow Clock Station, have students mark the shadow position at set times and compare how the length and direction change as the Sun appears to move.

What to look for

Ask students to stand and model Earth's rotation using their bodies, pointing one arm towards a designated 'Sun' (the teacher or a lamp). Ask: 'What happens to the side of your body facing the Sun as you spin?' and 'What happens to the side facing away?'

• Apply
• Analyze
• Evaluate
• Create
• Social Awareness
• Decision-Making

Activity 03

• Simulation Game
• 25 min · Pairs

Pairs: What If No Rotation?

Pairs draw Earth halves labeled day and night, then sketch and label results if rotation stops. Discuss hot/cold extremes and share with class. Use globe demo to test predictions.

Predict what would happen if the Earth stopped rotating.

Facilitation Tip

When pairs act out the 'What If No Rotation?' scenario, ask them to freeze in their positions and describe what someone on the bright side or dark side would experience hour after hour.

What to look for

Pose the question: 'Imagine Earth stopped spinning. What would happen to the side that was always facing the Sun? What about the side always facing away?' Facilitate a class discussion where students share their predictions and reasoning.

• Apply
• Analyze
• Evaluate
• Create
• Social Awareness
• Decision-Making

Activity 04

• Simulation Game
• 20 min · Individual

Individual: Daily Sky Journal

Students sketch sunrise position, midday Sun, and sunset from school view daily for a week. Note patterns and compare in plenary to infer rotation direction.

Explain why it is dark at night and bright during the day.

What to look for

Provide students with a diagram showing the Earth, Sun, and a point on Earth. Ask them to label the part experiencing day and the part experiencing night, and to write one sentence explaining why this happens.

• Apply
• Analyze
• Evaluate
• Create
• Social Awareness
• Decision-Making

A few notes on teaching this unit

Teachers find success when they slow down the rotation demonstration so students notice the gradual change from light to dark. Avoid rushing through explanations; instead, let students verbalize their observations first, then refine their language together. Research supports using concrete models before abstract drawings, so the globe and torch should come before sketches on paper.

Students will explain day and night using the terms rotation and axis, model the Sun's apparent movement from east to west, and predict what happens if Earth stopped spinning. They will use observations from activities to correct misconceptions and share their thinking with peers.

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Watch Out for These Misconceptions

• During the Globe and Torch Rotation activity, watch for students who move the torch around the globe to create day and night.

  Pause the activity and ask students to hold the torch still while they slowly turn the globe. Have them point to where the light hits and where it does not, then ask which object is really moving.

• During the Shadow Clock Stations activity, watch for students who believe the shadow is cast by the Earth itself.

  Ask students to trace the shadow onto their clock face at different times, then hold up their clock and a small ball to show where the light must be coming from.

• During the Daily Sky Journal activity, watch for students who write that night happens because the Sun is blocked by something in space.

  Have students look back at their shadow clock observations and circle the times when the Sun is low or absent. Ask them to describe what is happening on the opposite side of Earth at those moments.

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Methods used in this brief

• Simulation Game