Science (EVS K-5) · Class 1

Active learning ideas

Understanding Time: Day and Night

Active learning works well for this topic because children need to see and feel the Earth’s rotation to truly grasp why day and night happen. Hands-on activities like using a globe or making shadows help them move from abstract ideas to concrete understanding, which is especially important for young learners in Indian classrooms where visual and kinesthetic methods are effective.

• CBSE Learning Outcomes
• NCERT EVS Syllabus (Classes I-II), Theme: The World Around Me: Observes and describes changes in the sky (day and night).
• NCERT Learning Outcomes at Elementary Stage, EVS-101: Identifies simple features of the immediate environment.
• CBSE Syllabus for EVS Class 1, The Sky: Differentiates between day and night and associated activities.

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

Activity 01

• Think-Pair-Share
• 30 min · Whole Class

Whole Class: Globe Rotation Demo

Use a torch as the sun and a globe marked with India to show day and night. Rotate the globe slowly while students observe lit and dark sides. Have them call out activities for each side and note sky changes.

Explain the differences in activities we do during the day versus night.

Facilitation Tip

During the Globe Rotation Demo, rotate the globe slowly in front of a stationary torch to show how sunlight stays fixed while Earth spins.

What to look for

Give each student a card with two columns: 'Day' and 'Night'. Ask them to draw or write one activity they do during the day and one activity they do at night. Also, ask them to draw what the sky looks like during the day and at night.

• Understand
• Apply
• Analyze
• Self-Awareness
• Relationship Skills

Activity 02

• Think-Pair-Share
• 45 min · Small Groups

Small Groups: Shadow Stick Activity

Place sticks outside at different times to observe shadow lengths. Groups record changes from morning to evening, linking longer shadows to nearing night. Discuss how Earth's turn causes this.

Analyze why the sky looks different during day and night.

Facilitation Tip

For the Shadow Stick Activity, ensure students place sticks upright in sunny areas and observe shadows at different times to see Earth’s rotation in action.

What to look for

Ask students: 'Imagine it was always night. What would be one problem we would face? Now imagine it was always day. What would be another problem?' Record their ideas on the board, encouraging them to think about sleep, school, and plant growth.

• Understand
• Apply
• Analyze
• Self-Awareness
• Relationship Skills

Activity 03

• Think-Pair-Share
• 25 min · Pairs

Pairs: Day-Night Role Play

Pairs act out day activities like playing cricket, then switch to night ones like sleeping. Use blue and black cloths for sky. Switch roles and share what they notice about light needs.

Predict what would happen if it was always day or always night.

Facilitation Tip

In the Day-Night Role Play, have pairs use a globe with a tilted axis to act out how seasons and daylight hours change.

What to look for

Hold up pictures of various activities (e.g., sleeping, playing cricket, reading a book, looking at the moon, going to school). Ask students to give a thumbs up if it's a daytime activity and a thumbs down if it's a nighttime activity.

• Understand
• Apply
• Analyze
• Self-Awareness
• Relationship Skills

Activity 04

• Think-Pair-Share
• 20 min · Individual

Individual: My Day-Night Diary

Students draw or paste pictures of their daily routine split into day and night halves on a foldable sheet. Label sky colours and activities. Share one entry with the class.

Explain the differences in activities we do during the day versus night.

Facilitation Tip

For the My Day-Night Diary, remind students to record real-time observations like sunrise, sunset, or moon visibility to link their learning to daily life.

What to look for

Give each student a card with two columns: 'Day' and 'Night'. Ask them to draw or write one activity they do during the day and one activity they do at night. Also, ask them to draw what the sky looks like during the day and at night.

• Understand
• Apply
• Analyze
• Self-Awareness
• Relationship Skills

A few notes on teaching this unit

Start with real-life connections by asking students about their morning and evening routines. Avoid abstract explanations about longitude or latitude at this stage. Instead, use simple models like a globe and torch to demonstrate rotation. Research shows that children learn best when they can physically manipulate materials and see immediate changes, so prioritize hands-on exploration over lectures. Encourage them to ask questions like, 'Why does the shadow move?' to guide their curiosity.

By the end of these activities, students will confidently explain that day and night result from Earth’s rotation, not the sun’s movement. They will also be able to identify local and global patterns in day-night cycles and connect them to their daily routines and surroundings.

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Watch Out for These Misconceptions

• During the Globe Rotation Demo, watch for students who believe the sun moves across the sky.

  Use the torch as a fixed 'sun' and rotate the globe to show how different parts of Earth move into sunlight. Have students point to the lit side as Earth spins, reinforcing that the sun’s position stays constant.

• During the Shadow Stick Activity, watch for students who think the sky turns blue at night somewhere else.

  Ask students to observe how the shadow stick’s length and direction change with Earth’s rotation. Use this to explain that darkness occurs when a location faces away from the sun, making the sky dark everywhere at that moment.

• During the Day-Night Role Play, watch for students who assume day and night last the same length everywhere.

  Use a globe with a tilted axis to show how some parts of Earth receive longer or shorter sunlight depending on the season. Have students act out scenarios like endless day in summer or extra-long nights in winter.

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Methods used in this brief

• Think-Pair-Share