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The Lumenary
पूर्व-प्राथमिक–कक्षा 2Geometry & Topologyनियोजित

Measuring length and time

Comparing and ordering objects by length, measuring with non-standard and standard units, and telling time to the hour and half hour.

math.geom.measurement

इस विषय तक पहुँचने के लिए आवश्यक सब कुछ दिखाएँ

इस विषय का पाठ अभी लिखा नहीं गया है। नीचे दी गई रूपरेखा पाठ्यक्रम-मानचित्र का हिस्सा है और इसकी समीक्षा नहीं हुई है।

इस पर आधारित

Counting

2 अनिवार्य पूर्वापेक्षाएँ (बिल्कुल नीचे तक)

आप सीखेंगे

  • Compare and order objects by length, directly and by using a third object.
  • Measure lengths by laying copies of a unit end to end without gaps or overlaps, and then with a ruler.
  • Tell and write time to the hour and half hour on analogue and digital clocks.

परिभाषा

  • A unit is a fixed amount used for measuring, such as a centimetre or the length of a paper clip.
  • The length of an object is the number of units that fit along it end to end.

प्रमेय

  • Measuring the same length with a smaller unit gives a larger number.
  • If A is longer than B and B is longer than C, then A is longer than C.

आम भ्रांतियाँ

  • Starting to measure from 1 on a ruler instead of from 0.
  • Leaving gaps or overlaps between units.
  • Thinking a string becomes shorter when it is bent.

आगे ले जाता है

Area, perimeter and angles

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