The Knowledge of principles and methods for curriculum and training design, teaching and instruction for individuals and groups, and the measurement of training effects, the structure and content of the English language including the meaning and spelling of words, rules of composition, and grammar, circuit boards, processors, chips, electronic equipment, and computer hardware and software, including applications and programming, arithmetic, algebra, geometry, calculus, statistics, and their applications, the practical application of engineering science and technology. This includes applying principles, techniques, procedures, and equipment to the design and production of various goods and services.