The fundamental aspect of Vygotsky's theory is the Near End Development Zone (ZPD), which is the difference between learners' ability to do without help and what he or she can do with help. Vygotsky (1962) explains this as "Is difficult to learn alone, but can be learned with the help and guidance of adults and more skilled colleagues." Enable students to understand the content of the work, not the students (mixed ability group).
Papert, I have the opportunity to spend time in those years and develop a learning theory he calls "constructivism". Papert is a student of Piaget and Vygotsky and has developed a philosophy on the essence of knowledge called constitutionism and social constructivism. Papert was able to develop his own constructive learning theory, rather than abstract learning by memorizing memorization, this empirical learning. Papert saw that at the beginning of the birth of a microcomputer, learning can be not only communication but also reconstruction of knowledge. This kind of learning can be located in a place where personal, empirical and digital systems are supported and learners can effectively build their meaning as knowledge discovery. PAPERT believes that this is the creator of true liberation and learning experiences that computers bring to future learners and teachers.
Social constructivism is epistemology. Social constructivism is related to how to create meanings. Social constructivism arises from the criticism of objectivity, challenging the concept of knowledge proposed by positivism, positivism assumes actual externalities, and the truth proven by experience is independent of thought. According to Marecek, Crawford, and Popp, knowledge is "a real description generated by the knowledge community". Therefore, social constructivism focuses on how to create meaning.