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Preparation for this career begins in high school. Although entrance requirements to associate's degree programs vary somewhat from school to school, mathematics and physical science form the backbone of a good college preparatory curriculum. Classes should include algebra, geometry, science, trigonometry, calculus, chemistry, mechanical drawing, shop, and physics. Because computers have become essential for engineering technicians, especially for design and data management, computer courses are also important. Many engineering technician careers require skill in computer-aided design (CAD), so be sure take CAD classes if they are offered.