Behaviorist Theory. The behavioral theories of Skinner (1974) and Bijou (1989) also continue to influence what goes on in schools, especially for some special education programs. The mechanistic theory of behaviorism emphasizes the role of the environment on an individual's development.umerous theories of development have influenced educational practices during the 20th century (Aldridge, Kuby, & Strevy, 1992), and currently a shift is affecting theories of child development and education.
As you can see, there are lots of variables to answering the how long is hamburger meat good for question. Raw hamburger meat (ground beef) is much more perishable than other cuts of beef and will keep in the refrigerator for only 1 to 2 days. Cooked hamburger meat will keep 3 to 4 days in the refrigerator.
Six months is probably the longest it will last considering these factors. The guidelines state no more than three months in a good quality freezer Frozen items will stay edible for a long time. For hamburgers, at least a year or so. They won't taste too fresh, but they will be edible. According to the chart inside our freezer it should be OK for up to 3 months.