Measure twice, cut once. It's a fundamental rule of carpentry, a trade that has been around since humans started using tools to create shelters out of wood. It's a trade that's both technical and artistic, employing geometry and trigonometry as well as hands on skills, drawing and understanding of architectural history. Carpenters use both hand tools and machines and may specialize in areas such as framing, cabinetry, fine joinery, and finish trim work.
If you like the smell of sawdust, and believe that the best way for you to learn is hands-on environment, applying what you learn in the classroom to a practical end, then the Carpentry path at Mather is for you. Measure twice, cut once. True for carpenters, true for life.