The structure of laminin antedates by many thousands of years traditional Christian accounts of the life of Jesus. A cross-like shape is a very simple structure that is commonly found in elements created naturally or accidentally.
Problem solving consists of using generic or ad hoc methods, in an orderly manner, for finding solutions to problems. Some of the problem-solving techniques developed and used in artificial intelligence, computer science, engineering, mathematics, or medicine are related to mental problem-solving techniques studied in psychology.
Students are in groups of four. All four students solve the first problem at the same time. One student solves by graphing; one student solves by linear combination; one student solves by substitution; and the fourth solves using matrices.