Construction: The US construction industry is worth 1.18 trillion dollars and employes 7.9 million people. The
US census says that this number is 59% nonresidential and 41% residential. Concrete is the most used
material in construction.
Education: Teaching is a flat profession. In most professions, as the practitioner gains experience, he or she
has the opportunity to exercise greater responsibility and assume more significant challenges. This is not true
of teaching. The 20-year veteran's responsibilities are essentially the same as those of the newly licensed
novice. In many settings, the only way for a teacher to extend his or her influence is to become an
administrator. Many teachers recognize that this is not the right avenue for them (Danielson, 2007).
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