प्राथमिक गणित पाठ्यक्रम में मानचित्रण (मैपिंग) के निम्नलिखित में से कौन से पहलू मौजूद हैं? (A) मानचित्र व्याख्या (B) बिना पैमाने का आरेखण (मुक्तहस्त रेखाचित्र) (C) प्रतीकों का उपयोग (D) कड़ाई से एक मानक अनुपातिक पैमाने के अनुसार आरेखण

A mathematics teacher of Class II gives the following word problem on addition to the students: 'A bag contains 4 mangoes and 6 more mangoes are put into it. How many mangoes are there in the bag in total?' This type of word problem belongs to which of the following structures of addition?

A teacher wrote the number 308 on the blackboard and asked the children to read it aloud. A child said, 'It is thirty-eight.' Which of the following is the most appropriate strategy to rectify the error made by the child?