Science (EVS K-5) · Class 1

Active learning ideas

Exploring Materials: Smooth and Rough

Children in Class 1 learn best when they use their senses to explore materials. Handling objects directly helps them connect the concept of texture to their daily experiences, making abstract ideas like smooth and rough concrete and memorable.

• CBSE Learning Outcomes
• CBSE: Materials Around Us - Class 1

• 15–25 min
• Pairs → Whole Class
• 4 activities

Activity 01

• Experiential Learning
• 20 min · Small Groups

Texture Sorting Game

Provide a variety of objects like coins, leaves, and cloths. Students sort them into smooth and rough baskets. They describe why each belongs there.

Compare smooth and rough textures using everyday objects.

Facilitation Tip

During the Texture Sorting Game, place objects in baskets so children can move and group them without crowding the table.

What to look for

Present students with a tray of 5-6 common objects (e.g., a crayon, a piece of cloth, a wooden block, a leaf, a cotton ball). Ask them to pick up each object, feel it, and sort it into two piles: 'Smooth' and 'Rough'. Observe their sorting and ask them to name one object from each pile.

• Apply
• Analyze
• Evaluate
• Self-Awareness
• Self-Management
• Social Awareness

Activity 02

• Experiential Learning
• 15 min · Pairs

Blindfold Touch Challenge

One child is blindfolded and touches objects to guess textures. Partners guide without naming. Class discusses clues from touch.

Explain how texture can help us identify objects without seeing them.

Facilitation Tip

For the Blindfold Touch Challenge, use a soft scarf so it does not tickle or distract students from focusing on touch.

What to look for

Ask students: 'Imagine you are holding two different objects, one smooth and one rough. How would you know which is which without looking?' Listen for responses that mention using their sense of touch and describing the feeling (e.g., 'one feels slippery', 'the other feels scratchy').

• Apply
• Analyze
• Evaluate
• Self-Awareness
• Self-Management
• Social Awareness

Activity 03

• Experiential Learning
• 25 min · Individual

Design a Mixed Texture Object

Students use craft materials to build an object with smooth and rough parts, like a house model. They explain choices.

Design an object that requires both smooth and rough parts.

Facilitation Tip

When students design mixed texture objects, provide recycled materials like bottle caps and cardboard strips to encourage creativity without expense.

What to look for

Give each student a small piece of paper. Ask them to draw one object they found to be smooth and one object they found to be rough. Underneath each drawing, they should write the word 'Smooth' or 'Rough'.

• Apply
• Analyze
• Evaluate
• Self-Awareness
• Self-Management
• Social Awareness

Activity 04

• Experiential Learning
• 20 min · Whole Class

Outdoor Texture Hunt

Children find natural smooth and rough items outside. They collect and present to class.

Compare smooth and rough textures using everyday objects.

What to look for

Present students with a tray of 5-6 common objects (e.g., a crayon, a piece of cloth, a wooden block, a leaf, a cotton ball). Ask them to pick up each object, feel it, and sort it into two piles: 'Smooth' and 'Rough'. Observe their sorting and ask them to name one object from each pile.

• Apply
• Analyze
• Evaluate
• Self-Awareness
• Self-Management
• Social Awareness

A few notes on teaching this unit

Start with real objects children know, not pictures, because touch confirms texture better than sight. Keep instructions short and demonstrate each step before children begin. Avoid using words like 'feels nice' because children need precise vocabulary to describe texture accurately.

By the end of the activities, students should confidently sort materials by texture, describe differences using touch, and design objects that use both textures purposefully. Their explanations should show that they understand how texture helps us identify and use objects safely.

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Watch Out for These Misconceptions

• During Texture Sorting Game, some children may assume all smooth objects are safe.

  Remind students to check temperature and edges before touching any object, even smooth ones like polished stones, and model this safety step.

• During Texture Sorting Game, children may place all rough objects in one pile.

  Ask students to compare gritty sandpaper with bumpy tree bark and name one difference in roughness before sorting again.

• During Blindfold Touch Challenge, students may say they can see texture without touching.

  Ask them to describe how their fingers feel the difference after touching, not eyes, to confirm the importance of touch.

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Methods used in this brief

• Experiential Learning