स्कूली स्तर पर छात्रों को 'अंतर्राष्ट्रीय समझ' (International Understanding) प्रभावी ढंग से कैसे सिखाई जा सकती है?

Distance education primarily overcomes the difficulty of:

Consider the following challenges: 1. Difficult to formulate and plan effectively 2. Requires highly qualified and trained teachers These points represent primary limitations of which teaching methodology?