Like iron, zinc is not as easily absorbed from plant sources as it is from animal products. Cheese is a good option if you eat dairy products. Plant sources of zinc include whole grains, soy products, legumes, nuts and wheat germ.
Vygotskyâs Social Development Theory. Vygotskyâs Social Development Theory is the work of Russian psychologist Lev Vygotsky (1896-1934), who lived during Russian Revolution. Vygotskyâs work was largely unkown to the West until it was published in 1962.Vygotskyâs theory is one of the foundations of constructivism.It asserts three major themes:ummary: Social Development Theory argues that social interaction precedes development; consciousness and cognition are the end product of socialization and social behavior. Originator: Lev Vygotsky (1896-1934).
Biography Theory Time Line Bibliography. Lev Semyonovich Vygotsky was born in Western Russia(Belorussia) in 1896. He graduated with law degree at Moscow University. After graduation, he started teaching at various institutions. Vygotsky's first big research project was in 1925 with his Psychology of Art. A few years later, he pursued a career as a psychologist working with Alexander Luria and Alexei Leontiev.