NCERT Class 2 Maths (Joyful Mathematics) · Chapter 5
Playing with Lines
Standing (vertical), sleeping (horizontal), slanting, and curved lines in yoga poses, drawings, and paper folding.
📌 What you’ll learn in this chapter
- Straight lines: standing, sleeping, and slanting
- Curved lines
- Finding lines in yoga poses and pictures
- Drawing designs with lines
🧘 Let’s Begin: Yoga Time
In yoga class, Rahul stands tall like a tree. His body makes a standing line (|). When he lies down, he makes a sleeping line (—). When he bends back like a bow, he makes a curved line!
📏 Part 1: Types of Lines
| Line | Looks like | Example |
|---|---|---|
| Standing (vertical) | | | A flag pole, a tree trunk |
| Sleeping (horizontal) | — | The ground, a bench top |
| Slanting | / or \ | A slide, a ladder against a wall |
| Curved | ◡ ⌒ | A rainbow, a smile |
💡 Thread test
Pull a thread tight and it’s straight (standing, sleeping, or slanting). Loosen it and it becomes curved!
✏️ Practice Time
Try these on your own first, then check your answer below each question.
Q1. What kind of line is a rainbow?
✅ AnswerCurved
Q2. What kind of line is a door’s side edge?
✅ AnswerStanding (vertical)
Q3. Name something with a slanting line.
✅ AnswerFor example, a slide or a roof.
📘 NCERT Textbook Activity Help
Hints and answers for the activities in the textbook, page by page. Try each one yourself before looking at the answer!
Page 44 · AasanasLines in yoga poses
✅ AnswerStanding poses (like Tadasana) show vertical lines. Poses with arms or legs stretched at an angle show slanting lines. Bending poses (like Chakrasana or Dhanurasana) show curved lines. Lying poses (like Shavasana) show horizontal lines. Look at each picture in your book and mark it.
Page 45 · What is straight?Thread activity
✅ AnswerThe tight thread (sleeping, standing, or slanting) is straight. When you bring your hands closer, it becomes a curved line. Standing, sleeping, and slanting lines are all straight lines.
Pages 46–49 · Drawing and foldingMake designs
✅ AnswerJoin dots with straight lines to make a house, star, or boat. Use curved lines for clouds and rainbows. Paper folding: each fold makes a straight crease. Folds from corner to corner make slanting lines. You can’t make a curved crease by simply folding, so curves are made by rolling or bending the paper.
👨👩👧 Tips for Parents
- Do a few yoga poses together and name the lines your bodies make.
- Look for lines in Warli or Madhubani art.
- Fold paper and trace the creases with crayons.