The constructivist frame/perspective is based on the idea that meaningful learning takes place when learners actively construct their own knowledge.Central ideas of the constructivist frame:Children are active explorers of the environment. Children are little scientists and markers of meaning.Children are builders and creators of new knowledge.Children are born to be like 'scientific investigators' and 'problem solvers'.Childrens thinking is qualitatively different from that of adults not quantitatively.Children learn through experiencing things and reflecting on those experiences.Children are born to construct the meaning of their environment through social interaction.Hence, it could be concluded that (i), (ii), and (iv) are correct in the context of the question.