1920 - First Commercial Radio Station 1920 : The first commercial radio station begins operating in Detroit, Michigan with call sign 8MK (Now WWJ - Newsradio 950). The radio station was started by The Detroit News newspaper and is now owned and run by CBS.

जब छात्र शिक्षक के पूछने में झिजकता है बार बार पूछे तो अयापक को क्या करना चाहिए

Often Students hesitate in asking questions from teachers. Why do you think such things happen? If your students asked you to explain something again and again, how would you tackle the situation? Share your solutions by clicking on answer. अक्सर छात्र शिक्षकों से प्रश्न पूछने में संकोच करते हैं। आपको क्या लगता है कि ऐसी चीजें क्यों होती हैं? यदि आपके छात्रों ने आपको बार-बार कुछ समझाने के लिए कहा है, तो आप स्थिति में क्या करेंगे ? उत्तर पर क्लिक करके अपने समाधान साझा करें।

"The best teachers are those who show you where to look, but don't tell you what to see"

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