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Sahi Tareeke se Lambai Naapna, Mudi Lines Bhi

Class 6 Science · Chapter 5: Lambai ka Maap aur Gati · NCERT Curiosity section 5.3–5.4

Seekho

Sahil ka ruler sire se toota hai: 1 cm se shuru hota hai. Kya wo phir bhi naap sakta hai? Haan! Wo pencil ka ek sira 1 cm par rakhta hai aur doosre sire par 8.5 cm padhta hai. Lambai 8.5 − 1 = 7.5 cm.

length = end reading − start reading

Sahi naapne ke tips: ruler ko object ke saath-saath, chhoota hua rakho. Zero se shuru karo, ya kisi poore nishaan se aur ghatao. Aankh nishaan ke theek upar rakho: tirchha dekhne se galat padhai hoti hai.

Mudi line kaise naapoge, jaise map par sadak ya patte ka kinaara? Mod ke saath dhyaan se dhaaga bichhaao, jahan khatam ho nishaan karo, dhaage ko seedha karke ruler se naapo. Bottle jaisi moti gol cheez ke chaaron or dhaaga ya measuring tape lapeto.

Explore: toote ruler se naapo.

  1. Ye ruler 2 cm se shuru hota hai. Crayon ke dono sire tap karo.
  2. Ab chaabi naapo.

Yaad rakho

  • Lambai = ant ki padhai − shuru ki padhai. Toota ruler bhi kaam karta hai.
  • Aankh nishaan ke theek upar; mudi lines ke liye dhaaga.

Quick check

Crayon ruler ke 3 cm se 9 cm nishaan tak hai. Kitna lamba hai?

  1. 6 cm
  2. 9 cm
  3. 12 cm
  4. 3 cm
Answer

6 cm. Lambai = ant − shuru = 9 − 3 = 6 cm.

Socho

Sochho sirf kaagaz ki patti aur ruler se apni kalaai ke chaaron or ki doori kaise naapoge.

Ek answer

Kaagaz ki patti kalaai ke chaaron or lapeto, jahan milti hai nishaan lagao, kholo, aur ruler se sire se nishaan tak naapo.

Practice

Teen levels (easy, medium, hard) ke naye sawaalon se practice karo, kuch hands-on, hints aur hal ke saath. Topic poora karne ke liye pichhle 5 mein se 4 sahi karo.