As a math, highway construction, and OSHA safety instructor and coordinator for the Pre-Apprenticeship Training in Highway Construction program at the Maricopa County Community College District, Phoenix, Arizona, author Robert Chasan combines practical experience with exceptional teaching abilities to bring you and your students this engaging text. Under his tutelage, Professor Chasan's program, funded by the Federal Highway Administration, has become a national leader. Mr. Chasan also coordinates his school's SCANS Lab (Secretary of Labor's Commission on Acquiring Necessary Skills), teaching math, blueprint reading, and SCANS skills to the welding and machine trades students and the school's other trades programs. In addition, Professor Chasan has led the school Safety Team and taught OSHA-10, OSHA-30, and SSTA-16. Professor Chasan specializes in areas of math instruction, ranging from developmental through trigonometry, including fractions and decimals, measuring instruments, tolerances, percentages, and metrics. He also focuses on geometry including area, volume and mass, angular development and measurement, and bends and stretch outs. A certified Arizona Community College instructor, Professor Chasan is well recognized for the quality of his vocational instruction.