CBSE Class 4 Mathematics – Measuring Length

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Study Materials

4th

4th - Mathematics ( Math-Mela)

Measuring Length

Chapter Overview

The chapter 'Measuring Length' introduces the concept of length and its measurement using standard units. Students learn to use measuring tools such as a ruler, metre scale, and measuring tape. The chapter builds an understanding of metric units like millimetres (mm), centimetres (cm), metres (m), and kilometres (km). It emphasizes the correct usage of units, conversion between units, estimation of lengths, and practical application through story-based problems and daily-life connections. It develops precision and logical thinking related to measurement.

Important Keywords

  • Length: The measurement of how long something is.
  • Millimetre (mm): Smallest standard unit of length.
  • Centimetre (cm): A unit equal to 10 mm.
  • Metre (m): The basic unit of length. 1 m = 100 cm.
  • Kilometre (km): A larger unit of length. 1 km = 1000 m.
  • Measurement: The process of finding the size or amount of something.
  • Estimation: Making a close guess of a measurement.

Detailed Notes

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