What is Long? What is Round? – Class 1 Maths Chapter 2 Notes & NCERT PDF

Class 1MathematicsChapter 2NCERT book: Joyful Mathematics - Class 1

Notes and a simple summary of Chapter 2 of the NCERT Class 1 Mathematics book, with the official chapter PDF, flashcards, an MCQ quiz and an AI tutor for your doubts.

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Chapter 2: What is Long? What is Round?

Introduction

This chapter helps children notice the shapes of things around them. It starts with a circle game led by Vidya didi: "What is long? My pencil box is long. What is round? My ball is round." Children then compare objects, match things with similar shapes, and discover that some objects roll, some slide, and some can do both.

What's in this Chapter

Look Around game: Children sit in a circle and name one long thing and one round thing, without repeating. "My legs are long and my face is round." The book notes that a tumbler may seem long to one child and round to another – both views are accepted if the child explains.

Think and Do: Draw round objects and long objects; match objects that are similar in shape; tick shapes similar to a ball, a cap, a glass and a matchbox.

Let us Do: Build a house, toy, tower, robot or bus using notebooks, pencil boxes, bottles, birthday caps, funnels and waste boxes.

Story – "Wise Grandmother": A little lamb meets a wolf and says, "Please don't eat me now. Let me first go to my grandmother's place and grow big." The wise grandmother puts the lamb into a dholak and rolls it back home. The dholak rolls very fast down the slope, and the wolf cannot catch it.

Let us Slide: In carrom, a striker (gotti) slides to the corner. A child says, "My striker rolled instead of sliding."

Roll or Slide: Write R for rolling objects and S for sliding objects, and find objects that can do both.

Project Work: Make box puppets, build towers to see which shapes make taller and more stable towers, and create shapes with clay.

Key Ideas

Objects around us have different shapes – some are long, some are round.

Objects that look alike in shape can be matched together, e.g., a ball and a round fruit, a matchbox and a book.

Round objects like a ball or a dholak roll.

Flat-faced objects like a book or a box slide.

Some objects, like a glass or a bottle, can roll on their curved side and slide on their flat side.

Flat, box-like shapes make more stable towers than round ones.

Activities from the Book

Play the "Look Around" circle game.

Tick shapes similar to a ball, cap, glass and matchbox.

Enact the Wise Grandmother story.

Test objects from home – do they roll, slide or do both?

Make a tower and a puppet from waste boxes.

Words to Learn

long – stretching far from end to end (लंबा)

round – shaped like a ball or circle (गोल)

shape – the outline or form of a thing (आकार)

roll – move by turning over and over (लुढ़कना)

slide – move smoothly without turning (फिसलना)

flat – smooth and level (चपटा)

tower – a tall structure (मीनार)

similar – nearly the same (मिलता-जुलता)

stable – steady, not falling easily (स्थिर)

Tips for Parents & Teachers

Go on a "shape walk" at home: find three long things and three round things.

Let the child roll a ball, a bottle and a book down a sloping board and say what happens.

Use empty boxes and bottles to build towers and ask which one falls first and why.

Ask the child to retell the Wise Grandmother story and explain why the dholak rolled.

Accept different answers when a child explains them logically, as the book advises.

Common Mistakes

Thinking an object can only be "long" or only "round"; a tumbler or bottle can be both, depending on how we look at it.

Believing all objects either roll or slide – some do both.

Calling a box "round" because it has curved decorations; look at its faces and edges.

💡 Key Learning Points

✓Identify long and round objects in the surroundings.
✓Match objects that have similar shapes, such as a ball, cap, glass and matchbox.
✓Explain that round objects roll and flat-faced objects slide.
✓Find objects that can both roll and slide.
✓Use everyday objects to build structures and notice which shapes are stable.

👨‍🏫 Teaching Tips

→Start with Vidya didi's circle game and do not allow repeated objects.
→Accept both 'long' and 'round' for objects like a tumbler if the child explains.
→Bring a real ball, cap, glass and matchbox for the shape-matching task.
→Act out the Wise Grandmother story with a drum or round tin rolling down a slope.
→Let children test real objects on a sloping board and record R, S or both.
→Divide the class into four groups and ask each to collect two waste objects of one shape.
→Use the tower project to discuss which shapes stay steady.

📋 Assessment Questions

Can the child name at least three long and three round objects?
Can the child match an object with another of similar shape?
Can the child predict whether an object will roll, slide or do both, and check it?
Can the child explain why the dholak in the story rolled?
Can the child build a stable tower and say which shapes helped?

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