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Science · Year 1

Active learning ideas

Making Shadows

Active exploration lets children test ideas hands-on, which is key for understanding shadows. Moving, measuring, and comparing shadows in real time helps them build accurate concepts that static explanations can’t match.

National Curriculum Attainment TargetsKS1: Science - Light
25–45 minPairs → Whole Class4 activities

Activity 01

Stations Rotation35 min · Small Groups

Stations Rotation: Shadow Materials

Prepare stations with torches, opaque toys, transparent gels, and white screens. Small groups test five items per station, draw shadows or note presence/absence, then rotate after 7 minutes. Discuss results as a class.

Explain how a shadow is created.

Facilitation TipDuring Station Rotation: Shadow Materials, circulate and ask each pair to explain why their chosen object blocks light while others let it pass.

What to look forHold up a torch and an opaque object. Ask students: 'What do we need to make a shadow?' Then, move the object closer to the torch and ask: 'What is happening to the shadow? Why?' Observe student responses and gestures.

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Activity 02

Plan-Do-Review25 min · Pairs

Distance Pairs: Shadow Sizes

Pairs use a torch, puppet, and metre stick against a wall. Shine light from 10cm, 50cm, and 100cm away, measure shadow heights each time, and sketch changes. Predict outcomes before measuring.

Analyze how the position of a light source affects a shadow's size and shape.

Facilitation TipDuring Distance Pairs: Shadow Sizes, provide rulers so pairs can record measurements and compare predictions to actual shadow lengths.

What to look forGive each student a piece of paper with a drawing of a light source and a simple object. Ask them to draw the shadow. Then, ask them to draw a second picture showing how they would move the object to make the shadow smaller.

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Activity 03

Plan-Do-Review45 min · Whole Class

Whole Class: Shadow Puppets

Children select sticks, card shapes, and torches to make animal puppets. Practice moving them close and far from a screen, then perform a simple story for peers. Vote on clearest shadows.

Design a shadow puppet show using different objects.

Facilitation TipDuring Whole Class: Shadow Puppets, model how to hold the torch steady while children adjust puppet positions to see size and sharpness changes.

What to look forSet up a shadow puppet station. Ask students: 'How can you make your shadow puppet bigger or smaller?' and 'How can you change the shape of your puppet's shadow?' Encourage them to experiment and explain their observations.

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Activity 04

Outdoor Investigation Session30 min · Individual

Outdoor Investigation Session: Sun Shadow Hunt

Mark starting positions with chalk, trace body shadows every 15 minutes for an hour. Compare lengths and shapes on paper, noting sun position changes. Share drawings in plenary.

Explain how a shadow is created.

Facilitation TipDuring Outdoor: Sun Shadow Hunt, start with a quick demonstration so children see how to mark shadows with chalk or sticks before working in small groups.

What to look forHold up a torch and an opaque object. Ask students: 'What do we need to make a shadow?' Then, move the object closer to the torch and ask: 'What is happening to the shadow? Why?' Observe student responses and gestures.

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Templates

Templates that pair with these Science activities

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A few notes on teaching this unit

Teach through guided discovery rather than direct instruction. Children need repeated, varied experiences with light sources, objects, and surfaces to correct initial misunderstandings. Avoid explaining shadow formation before they’ve explored; instead, let their observations lead the discussion. Research shows that letting children predict before testing, then reconcile any mismatches, strengthens conceptual change more than immediate corrections.

By the end of these activities, children will predict, measure, and explain how shadows change with light and object placement. They will use terms like distance, angle, and opaque correctly in discussions.


Watch Out for These Misconceptions

  • During Distance Pairs: Shadow Sizes, watch for children who predict shadows will grow larger as objects move farther from the torch.

    Have pairs measure and compare shadow lengths at 10 cm, 30 cm, and 50 cm from the torch. Ask them to explain why the shadow shrinks as the object moves away, using their rulers and observations.

  • During Outdoor: Sun Shadow Hunt, watch for children who assume only sunlight can make shadows.

    Prompt them to recall the torch tests indoors. Ask them to shine a torch on an object during the hunt and observe that the shadow looks the same as the sun-made one.

  • During Station Rotation: Shadow Materials, watch for children who say transparent objects make shadows.

    Have them place clear plastic, tissue paper, and opaque card at the station. Ask them to shine a torch through each and describe what they see on the wall behind them.


Methods used in this brief