Sunita Shirtode
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Posted 6 year ago
Blackboard nahi hote to..... Kalpna kijiye aur likhiye...
3 Answer(s)
Lalit Patel
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Posted 6 year ago Lalit Patel

Blackboards are very easential for maths learning but in ancient time there was a time when blackboard were not presente that time they used speaking memorizing listening the word was using for learning.

Priya Soni
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Posted 6 year ago Priya Soni

Blackboards are very easential for maths learning but in ancient time there was a time when blackboard were not presente that time they used speaking memorizing listening the word was using for learning.

Priya Soni
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