Seawalls are hard engineered structures with a primary function to prevent further erosion of the shoreline. They are built parallel to the shore and aim to hold or prevent sliding of the soil, while providing protection from wave action (UNFCCC, 1999).
Making the world better, one answer at a time. Vygotsky is best known for is theory of language acquisition, particularly the idea of scaffolding and the zone of proximal development.
Vygotsky's theory differs from that of Piaget in a number of important ways: 1: Vygotsky places more emphasis on culture affecting/shaping cognitive development-this contradicts Piaget's view of universal stages and content of development.(Vygotsky does not refer to stages in the way that Piaget does).2: Vygotsky places considerably more emphasis on social factors contributing to cognitive development (Piaget is criticized for underestimating this).: Vygotsky places more (and different) emphasis on the role of language in cognitive development (again Piaget is criticized for lack of emphasis on this). For Vygotsky, cognitive development results from an internalization of language.