Chapter 5 of 11
Chapter 5: Playing with Lines
Standing (Vertical), Sleeping (Horizontal), Slanting (Diagonal) & Curved Lines | CBSE Session 2026–27
Core Pedagogical Competencies & Concepts
- Distinguishing the 4 basic line types: standing, sleeping, slanting, and curved.
- Analyzing straight vs curved line components in letters of the English alphabet and numbers.
- Creating stick-figure dancer drawings and clock hands using line combinations.
All Textbook Exercises & In-Text Tasks (18 Questions)
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Q1
Line Classification
Classify each everyday object with its matching line type:
(a) A tall straight flagpole
(b) The edge of a calm swimming pool
(c) A sliding board in a park
(d) A round hula hoop
[2 Marks]
(a) A tall straight flagpole
(b) The edge of a calm swimming pool
(c) A sliding board in a park
(d) A round hula hoop
✅ Step-by-Step Solution & Working
Classification:
(a) Flagpole: Standing line (Vertical)
(b) Swimming pool edge: Sleeping line (Horizontal)
(c) Sliding board: Slanting line (Diagonal)
(d) Hula hoop: Curved line.
(a) Flagpole: Standing line (Vertical)
(b) Swimming pool edge: Sleeping line (Horizontal)
(c) Sliding board: Slanting line (Diagonal)
(d) Hula hoop: Curved line.
CBSE Step-by-Step Marking Scheme
All 4 correctly classified (0.5 M each)
2 M
Q2
Alphabet Line Analysis
Count the lines in the capital letter 'H':
(a) How many standing lines?
(b) How many sleeping lines?
(c) Are there any curved lines?
[2 Marks]
(a) How many standing lines?
(b) How many sleeping lines?
(c) Are there any curved lines?
✅ Step-by-Step Solution & Working
Answer:
(a) Standing lines = 2 (the two upright sides).
(b) Sleeping lines = 1 (the bar across the middle).
(c) Curved lines = 0 (none).
(a) Standing lines = 2 (the two upright sides).
(b) Sleeping lines = 1 (the bar across the middle).
(c) Curved lines = 0 (none).
CBSE Step-by-Step Marking Scheme
2 standing lines
1 M
1 sleeping line, 0 curved
1 M
Q3
Alphabet Line Analysis
Which line types make up the capital letter 'A'? Name them and count each.
[2 Marks]
✅ Step-by-Step Solution & Working
Answer:
• The letter 'A' is made of:
1. 2 slanting lines (the two sides that meet at the top peak).
2. 1 sleeping line (the crossbar in the middle).
• Total = 3 straight lines.
• The letter 'A' is made of:
1. 2 slanting lines (the two sides that meet at the top peak).
2. 1 sleeping line (the crossbar in the middle).
• Total = 3 straight lines.
CBSE Step-by-Step Marking Scheme
2 slanting lines identified
1 M
1 sleeping line identified
1 M
Q4
Straight vs Curved Letters
Group the following letters into 'Only Straight Lines' and 'Only Curved Lines':
[ E, O, L, C, T, S ].
[2 Marks]
[ E, O, L, C, T, S ].
✅ Step-by-Step Solution & Working
Grouping:
• Only Straight Lines: E, L, T
• Only Curved Lines: O, C, S.
• Only Straight Lines: E, L, T
• Only Curved Lines: O, C, S.
CBSE Step-by-Step Marking Scheme
Straight letters (E, L, T) correct
1 M
Curved letters (O, C, S) correct
1 M
Q5
Letters with Both Lines
Name three capital letters that have BOTH straight lines AND curved lines.
[2 Marks]
✅ Step-by-Step Solution & Working
Answer:
Examples include:
1. B (1 standing line + 2 curved lines)
2. D (1 standing line + 1 curved line)
3. P (1 standing line + 1 curved line)
*(Also: R, G, J)*.
Examples include:
1. B (1 standing line + 2 curved lines)
2. D (1 standing line + 1 curved line)
3. P (1 standing line + 1 curved line)
*(Also: R, G, J)*.
CBSE Step-by-Step Marking Scheme
Any 3 correct letters with breakdown
2 M
Q6
Clock Hands Lines
Look at the hands of a clock:
(a) At 6:00 o'clock, what single line do the two hands form together?
(b) At 3:00 o'clock, which two types of lines do the hands form?
[2 Marks]
(a) At 6:00 o'clock, what single line do the two hands form together?
(b) At 3:00 o'clock, which two types of lines do the hands form?
✅ Step-by-Step Solution & Working
Answer:
(a) At 6:00, the hour hand points down and minute hand points straight up, forming one straight standing line.
(b) At 3:00, the minute hand is a standing line and the hour hand is a sleeping line (forming a right angle).
(a) At 6:00, the hour hand points down and minute hand points straight up, forming one straight standing line.
(b) At 3:00, the minute hand is a standing line and the hour hand is a sleeping line (forming a right angle).
CBSE Step-by-Step Marking Scheme
6:00 forms standing line
1 M
3:00 forms standing + sleeping line
1 M
Q7
Number Line Analysis
Which single-digit numbers are written using ONLY straight lines? (Look at digits 1, 4, 7).
[2 Marks]
✅ Step-by-Step Solution & Working
Answer:
• The digits 1, 4, and 7 can be written using only straight lines.
(Digit 1 has 1 standing line; digit 4 has standing, sleeping, and slanting lines; digit 7 has sleeping and slanting lines).
• The digits 1, 4, and 7 can be written using only straight lines.
(Digit 1 has 1 standing line; digit 4 has standing, sleeping, and slanting lines; digit 7 has sleeping and slanting lines).
CBSE Step-by-Step Marking Scheme
Identified 1, 4, 7
1 M
Explanation of lines
1 M
Q8
Number Line Analysis
Which single-digit number is made of exactly ONE continuous curved line?
[1 Marks]
✅ Step-by-Step Solution & Working
Answer:
The digit 0 (and digit 8 has curved loops). Digit 0 is 1 smooth continuous curved line.
The digit 0 (and digit 8 has curved loops). Digit 0 is 1 smooth continuous curved line.
CBSE Step-by-Step Marking Scheme
Digit 0 identified
1 M
Q9
Drawing with Objects
What kind of line do you get if you trace along:
(a) The side edge of a ruler?
(b) The edge of a round steel bangle?
[2 Marks]
(a) The side edge of a ruler?
(b) The edge of a round steel bangle?
✅ Step-by-Step Solution & Working
Answer:
(a) Ruler edge: A straight line (standing, sleeping, or slanting).
(b) Steel bangle edge: A curved line (circle).
(a) Ruler edge: A straight line (standing, sleeping, or slanting).
(b) Steel bangle edge: A curved line (circle).
CBSE Step-by-Step Marking Scheme
Ruler: straight line
1 M
Bangle: curved line
1 M
Q10
Dancing Stick Figures
In a Warli folk painting, figures are drawn with lines and triangles. How are arms shown when dancing with joy?
[2 Marks]
✅ Step-by-Step Solution & Working
Answer:
• The arms are shown using slanting lines raised upwards toward the sky, or curved arcs joining hands in a circle.
• The arms are shown using slanting lines raised upwards toward the sky, or curved arcs joining hands in a circle.
CBSE Step-by-Step Marking Scheme
Slanting lines / curved lines identified
2 M
Q11
Let Us Do • Line Count in Words
In the word 'TOP':
• 'T' has 1 sleeping line and 1 standing line.
• 'O' has 1 curved line.
• 'P' has 1 standing line and 1 curved line.
How many total straight lines are in the word 'TOP'?
[2 Marks]
• 'T' has 1 sleeping line and 1 standing line.
• 'O' has 1 curved line.
• 'P' has 1 standing line and 1 curved line.
How many total straight lines are in the word 'TOP'?
✅ Step-by-Step Solution & Working
Calculation:
• In 'T': 1 sleeping + 1 standing = 2 straight lines.
• In 'O': 0 straight lines.
• In 'P': 1 standing line = 1 straight line.
• Total straight lines = 2 + 0 + 1 = 3 straight lines.
• In 'T': 1 sleeping + 1 standing = 2 straight lines.
• In 'O': 0 straight lines.
• In 'P': 1 standing line = 1 straight line.
• Total straight lines = 2 + 0 + 1 = 3 straight lines.
CBSE Step-by-Step Marking Scheme
Line breakdown per letter
1 M
Total = 3 straight lines
1 M
Q12
Let Us Think • Slanting Lines
Why are stairs and ladders made with slanting lines instead of standing vertical lines?
[2 Marks]
✅ Step-by-Step Solution & Working
Answer:
• Slanting lines provide a gentle slope that people can climb comfortably and safely without falling backwards.
• A purely vertical line would be too steep to walk on without climbing with ropes.
• Slanting lines provide a gentle slope that people can climb comfortably and safely without falling backwards.
• A purely vertical line would be too steep to walk on without climbing with ropes.
CBSE Step-by-Step Marking Scheme
Gentle slope for climbing explained
1 M
Safety / balance factor
1 M
Q13
True or False • Line Rules
Write True or False:
(a) A sleeping line goes left to right like the horizon.
(b) You can draw a perfect circle using only straight lines.
(c) A triangle has 3 straight lines.
[3 Marks]
(a) A sleeping line goes left to right like the horizon.
(b) You can draw a perfect circle using only straight lines.
(c) A triangle has 3 straight lines.
✅ Step-by-Step Solution & Working
Answers:
(a) True
(b) False (A circle requires a curved line).
(c) True (A triangle has 3 straight sides).
(a) True
(b) False (A circle requires a curved line).
(c) True (A triangle has 3 straight sides).
CBSE Step-by-Step Marking Scheme
All 3 correct (1 M each)
3 M
Q14
Line Pattern Puzzle
Complete the line pattern: | , — , / , | , — , / , __ , __.
[2 Marks]
✅ Step-by-Step Solution & Working
Answer:
The repeating rule is: Standing (|), Sleeping (—), Slanting (/).
The next two lines are: | (Standing) and — (Sleeping).
The repeating rule is: Standing (|), Sleeping (—), Slanting (/).
The next two lines are: | (Standing) and — (Sleeping).
CBSE Step-by-Step Marking Scheme
Repeating rule identified
1 M
Next two lines (| and —)
1 M
Q15
Creative Construction
Using 4 straight lines of equal length, what shape can you construct? What if you use 3 straight lines?
[2 Marks]
✅ Step-by-Step Solution & Working
Answer:
• With 4 straight lines of equal length: A Square (or Rhombus).
• With 3 straight lines: A Triangle.
• With 4 straight lines of equal length: A Square (or Rhombus).
• With 3 straight lines: A Triangle.
CBSE Step-by-Step Marking Scheme
Square for 4 equal lines
1 M
Triangle for 3 lines
1 M
Q16
Line Riddle
I am neither standing straight nor lying flat asleep. I lean over like a walking stick or a ramp. What line am I?
[1 Marks]
✅ Step-by-Step Solution & Working
Answer:
I am a Slanting line (Diagonal line).
I am a Slanting line (Diagonal line).
CBSE Step-by-Step Marking Scheme
Identified Slanting line
1 M
Q17
Textbook Activity • Alphabet Line Tracing
Which capital letters are made using ONLY straight standing and sleeping lines? (A) H, E, F, L, T (B) C, O, S (C) P, B, R
[2 Marks]
✅ Step-by-Step Solution & Working
Answer:
• (A) H, E, F, L, T are made entirely of straight standing (vertical) and sleeping (horizontal) lines without any curves.
• (A) H, E, F, L, T are made entirely of straight standing (vertical) and sleeping (horizontal) lines without any curves.
CBSE Step-by-Step Marking Scheme
Identification of H, E, F, L, T
2 M
Q18
Textbook Activity • Clock Hands
Look at a wall clock at 3 o'clock. What kind of lines do the hour hand and minute hand form?
[2 Marks]
✅ Step-by-Step Solution & Working
Answer:
• The hour hand pointing at 3 is a sleeping (horizontal) line.
• The minute hand pointing at 12 is a standing (vertical) line.
• Together they form a corner (right angle).
• The hour hand pointing at 3 is a sleeping (horizontal) line.
• The minute hand pointing at 12 is a standing (vertical) line.
• Together they form a corner (right angle).
CBSE Step-by-Step Marking Scheme
Standing and sleeping lines identified
2 M
🌟 NEP 2020 Competency-Based Case Study
Art Class Stick Figure Choreography
During art class, Priya draws 3 stick-figure Bharatanatyam dancers using only chalk lines. For each dancer, she uses 1 standing line for the body, 2 slanting lines for arms, and 2 slanting lines for legs.
Analytical Task: How many slanting lines did Priya draw for all 3 dancers together? How many standing lines in total?
Evaluation & Model Answer:
1. Each dancer has 2 arm lines + 2 leg lines = 4 slanting lines.
2. For 3 dancers: 3 × 4 = 12 slanting lines.
3. Standing lines: 1 per dancer × 3 dancers = 3 standing lines.
2. For 3 dancers: 3 × 4 = 12 slanting lines.
3. Standing lines: 1 per dancer × 3 dancers = 3 standing lines.
Rubric: 1.5 M for slanting line calculation (12) + 1.5 M for standing line count (3)