Looking for the 5 Playing with Lines Class 2 NCERT PDF? It is right below.
This is the official chapter from the NCERT Joyful Mathematics textbook for Class 2, and this page walks you through every activity — the thread test, the yoga poses, the dot pictures and the paper-folding project — so you know what the chapter asks your child to do before you open the file.
Download the NCERT Class 2 Joyful Mathematics Chapter 5 Playing with Lines PDF
Get the NCERT Class 2 Joyful Mathematics Chapter 5 Playing with Lines PDF straight from the official NCERT portal. The file is free, current and published by NCERT itself, so this is the authoritative copy.
Chapter at a Glance
The table below shows what is inside the chapter file.
| What the chapter holds | Count | Where it is used |
|---|---|---|
| Printed pages | 6 | |
| Figures with NCERT captions | 2 | |
| Activities | 3 | |
| Official NCERT PDF | Download the chapter PDF | the chapter exactly as NCERT publishes it |
What This Chapter Covers
This section maps the chapter from beginning to end. Each activity has one idea behind it, and the activities build on one another.
- Let us Do (the aasanas page): children look at yoga poses, find lines in them, and mark the poses with circle, tick, cross and star according to the line types they contain.
- What is Straight?: a thread held between the hands shows a sleeping line, a slanting line and a standing line — all straight — and then a curved line when the hands come closer.
- Let us Do (the tracing picture): the child traces missing vertical, horizontal, slanting and curved lines to complete a picture.
- Let us Play with Dots: straight lines make new angular shapes; curved lines draw clouds, a rainbow and similar pictures.
- Let us Do (the design page): the child first draws a design using any two line types, then a design using any three.
- Project Work, Fun with Folding: paper folding makes creases, which the child traces as straight and slanting lines; a challenge tries to make a curved line by folding.
The build is clear: children recognise lines, name them, trace them and then create with them.
The Core Idea: Straight Versus Curved
The whole chapter rests on one idea — a line is either straight or curved — and every activity is practice with that idea.
In the What is Straight? section, the child holds a piece of thread between both hands. Held tight, the thread makes a straight line. Turn it sideways and it is a sleeping/horizontal line; tilt it and it is a slanting line; hold it upright and it is a standing/vertical line. All three are straight.
Then the child brings the hands closer together. The thread sags, and the book calls this a curved line. The section ends with the fill-in-the-blank: Standing/sleeping/slanting lines are ______. The answer is straight. A straight line does not bend or change direction; a curved line does.
For a home version, use a shoelace or cord: pull it tight for straight, then bring the ends closer and watch it sag for curved.
The Four Line Types: Standing, Sleeping, Slanting and Curved
The book deliberately uses words a six-year-old already knows — standing, sleeping, slanting, curved — before the formal word horizontal appears. Keep this table handy while your child works through the activities.
| Book’s name | Formal word | What it looks like | Straight or not |
|---|---|---|---|
| Standing line | Vertical | Goes up and down | Straight |
| Sleeping line | Horizontal | Goes left and right | Straight |
| Slanting line | No formal word in this chapter | Tilted, between standing and sleeping | Straight |
| Curved line | Curved | Bends and changes direction | Not straight |
Notice that only the curved line is not straight. In the paper-folding project, the crease made by folding paper is also a straight line — that is why the child traces the creases with crayons.
Walking Through the Chapter’s Pictures, Activity by Activity
A Class 2 child reads this chapter through its pictures — each picture is an instruction. Work through the pictures in the child’s own book in this order, and let the child name what they see before reading the label.
- The aasanas page. Each yoga pose is made of lines, and the symbols are the task: circle the poses with standing/vertical lines, tick the poses with both vertical and slanting lines, cross the poses that have curved lines, and put a star along the poses with sleeping/horizontal lines. Work one symbol at a time so the child searches the whole page fresh each time.
- The thread page. The same thread is shown straight and then sagging. Ask the child to say “straight” or “not straight” before you read the label together.
- The tracing picture. Some lines are missing from the scene. The child must decide which kind of line each gap needs — vertical, horizontal, slanting or curved — and trace it in.
- The dots page. Straight lines joined through dots make angular shapes; curved lines make clouds and a rainbow.
No separate diagrams are needed on this page — the child follows the pictures in their own copy of the book.
Dots, Designs and Paper Folding: Making Lines Into Pictures
The first half of the chapter trains the eye; this half trains the hand. These three making tasks turn the four line types into pictures the child creates.
Let us Play with Dots
Part A asks the child to make new shapes using straight lines — vertical, horizontal and slanting. Part B asks for different figures using curved lines, with clouds and a rainbow as examples. Joining dots with straight lines produces angular shapes; joining dots with curved lines produces soft, rounded pictures.
Let us Do: the design page
The child first makes a drawing using any two line types, then a design using any three line types. Moving from two to three types forces the child to combine lines instead of repeating the one they like best.
Project Work: Fun with Folding
Fold a paper in half and it makes a crease in the centre; fold it again and again and you get more creases. The child traces the straight creases with red crayon and the slanting creases with blue crayon, then checks with a friend who gets the most creases. The challenge is trying to make a curved line by folding.
The project also asks children to discuss art forms like Madhubani, Kalamkari and Warli, or any local art form they know, and suggests the teacher might invite local painters to share their process of drawing different lines and shapes. Lines are the shared vocabulary of these art forms.
Common Mistakes Children Make With Lines
These are the confusions this chapter actually sets up, and each one has a fix from the chapter itself.
| Mistake | Correct rule | How to check your answer |
|---|---|---|
| Thinking “straight” means vertical only | Sleeping and slanting lines are straight too | Ask: does the line bend? If it does not bend, it is straight — use the thread test |
| Mixing up standing and sleeping (vertical and horizontal) | Standing goes up and down; sleeping goes left and right | Act it out: stand up straight, then lie down to sleep |
| Calling a slanting line curved | A slanting line does not bend; a curved line changes direction | Run a finger along the line — slanting feels flat, curved bulges away |
| Expecting every fold-crease to look the same | A simple flat fold makes a straight crease; the curved crease is deliberately hard | Remember the project only asks the child to try making a curved line by folding |
What Parents and Teachers Should Know About This Chapter
There is no examination angle to this chapter, so this section gives classroom and home context instead of exam guidance.
The teacher’s note for the aasanas activity
The book instructs facilitators to guide children with directions like “keep the back straight, arms straight, curve the back, slant the arms and legs.” It also tells children about Ashtanga Yoga, as described in the ancient Yoga Sutras of Patanjali. The maths is taught with the body, inside a traditional context.
The project note on art forms
The folding project asks children to discuss Madhubani, Kalamkari, Warli or other local art forms, and suggests inviting local painters to show how they draw different lines and shapes. This connects the geometry of the chapter to the art around the child.
A five-minute home check
These four checks use the chapter’s own activities, so they test the chapter rather than adding new content.
| Check | What to do | What success looks like |
|---|---|---|
| Name all four line types | Point at a doorway, a table edge, a tilted ramp and a curved rope | Child says standing, sleeping, slanting and curved |
| Sort straight versus curved | Show a cord pulled tight, then sagging | Tight cord is straight; sagging cord is curved |
| Complete a missing-line picture | Draw a simple picture with some lines left out | Child adds the right kind of line for each gap |
| Make a design with at least two line types | Give paper and crayons | Design uses two or more different line types |
What a Child Should Be Able to Do After This Chapter
Here is the short recap — after this chapter, a child should be able to do four concrete things.
- Recognise straight versus curved lines.
- Name the four line types using the book’s words: standing, sleeping, slanting and curved.
- Trace and complete a picture using the correct line types.
- Create original designs, dot pictures and paper-folding patterns using different line types.
Related Resources
This listing is maintained for the 2026-27 academic session using the NCERT textbook information available to us. NCERT remains the authority for confirming the latest edition.
Continue with the Decoration for Festival Class 2 activity guide, or look back at the Shadow Story (Togalu) Class 2 notes for the chapter before this one. You can also browse all of the Class 2 Mathematics resources, visit the Class 2 study hub, or start from the CBSE Notes home page.
The authoritative source for the book itself is the official NCERT portal, ncert.nic.in, where the full Joyful Mathematics Class 2 textbook — including Chapter 5 — is published. This page describes the current NCERT edition of Joyful Mathematics Class 2 published there.
Sources and Data Verification
- The activities described above come from the current NCERT edition of Joyful Mathematics, Class 2, Chapter 5 (Playing with Lines), as published on ncert.nic.in.
- This page covers that chapter only; it does not cover other textbooks, other subjects or older NCERT editions.
- The NCERT information used here is maintained for the current edition available on ncert.nic.in.
- NCERT settles textbook editions and PDFs; CBSE settles curriculum, syllabus and examinations. Textbook contents and the examinable syllabus are not always identical — check the current official syllabus.
Frequently Asked Questions
Why is a horizontal line called a sleeping line in this chapter?
Because it lies flat, the way a child lies down to sleep. A standing line is vertical, and a sleeping line is horizontal — the book uses the body’s own words so a six-year-old can picture the direction before learning the formal term.
Is a slanting line straight or curved?
Straight. A slanting line is tilted but does not bend or change direction. The thread test shows this: hold a thread between your hands, tilt it, and it stays straight; only when the hands move closer does it sag into a curve.
How do I teach straight and curved lines to a Class 2 child at home?
Use a shoelace or cord: pull it tight between your hands for straight, bring your hands closer and watch it sag for curved. Then point at things around the house and ask the child to name each line type — standing, sleeping, slanting or curved — before trying the tracing and dot activities.
Can paper folding really make a curved line?
Making a curved crease by folding is deliberately hard, and the project only asks the child to try. A simple flat fold makes a straight crease, which is why the chapter tells children to trace the straight creases with red crayon and the slanting ones with blue crayon.
What is the yoga asanas activity doing in a Maths chapter?
It teaches line types with the body. Children find standing, sleeping, slanting and curved lines in yoga poses, then try some of the aasanas and talk about the lines they notice. The teacher’s note also connects the poses to Ashtanga Yoga from the ancient Yoga Sutras of Patanjali.
Where can I download the official NCERT Class 2 Joyful Mathematics Chapter 5 PDF?
From the official NCERT portal at ncert.nic.in — use the download link at the top of this page. NCERT publishes the textbook itself, so the portal version is the authoritative copy.
Reference: NCERT Class 2 Mathematics textbook (Joyful Mathematics), chapter 5, official edition on ncert.nic.in.
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