NCERT Class 5 Mathematics Math-Mela: Chapter 3 — Angles as Turns 3
This chapter, "Angles as Turns," from NCERT's Class 5 Mathematics Math-Mela, introduces students to the concept of turns in geometry. It explains full turns, half turns, and quarter turns using real-life examples like playing "Statue," making circles, and the movement of a giant wheel. Students learn to identify different types of turns and relate them to everyday objects such as taps, clothes clips, doors, tongs, scissors, and file covers. The chapter encourages observation and discussion about how objects rotate and the extent of their turns. It helps build a foundational understanding of angles and rotational symmetry, crucial for further mathematical concepts in CBSE curriculum.
Quick info
| Board | CBSE / NCERT |
|---|---|
| Class | Class 5 |
| Subject | Mathematics |
| Book | Math-Mela |
| Chapter | Chapter 3 — Angles as Turns 3 |
| Language | English |
| PDF type | NCERT Textbook |
| Session | CBSE 2026 |
| Reading time | 2 minutes |
| Word count | 367 |
Learning outcomes
- Identify and describe full, half, and quarter turns.
- Relate turns to real-life situations and objects.
- Understand rotational movement in everyday contexts.
- Compare different types of turns based on the degree of rotation.
Vocabulary
| Word | Meaning |
|---|---|
| Full turn | A complete rotation, returning to the starting position (360 degrees). |
| Half turn | A rotation of 180 degrees, resulting in an upside-down or opposite orientation. |
| Quarter turn | A rotation of 90 degrees, like the corner of a square. |
| Rotate | To turn around a central point or axis. |
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Practice questions
- If you turn halfway around, how much of a turn have you made? Answer: A half turn.
- What kind of turn does the minute hand of a clock make when it goes from 12 to 6? Answer: A half turn.
- If you make four quarter turns in the same direction, what kind of turn is it? Answer: A full turn.
Frequently asked questions
What is a full turn in the context of angles?
A full turn is a complete rotation where an object returns to its original position, equivalent to 360 degrees.
What is a half turn?
A half turn is a rotation of 180 degrees, essentially turning an object to face the opposite direction.
What is a quarter turn?
A quarter turn is a rotation of 90 degrees, like turning a corner of a square.
Can you give an example of a half turn in real life?
Opening a door halfway or the minute hand of a clock moving from 12 to 6 are examples of a half turn.
Which everyday objects involve turns?
Everyday objects like taps, clothes clips, doors, tongs, scissors, and file covers involve turns.
What happens if you take two half turns in the same direction?
Taking two half turns in the same direction results in a full turn.
Related resources
Important topics
Topics covered
NCERT Class 5 Mathematics — Math-Mela — Chapter 3 — Angles as Turns 3. Verified by NCERT Help Editorial Team. Reviewed on 29 Jul 2026. Last updated 10 Aug 2026.