Adapt teaching methods and instructional materials to meet students' varying needs, abilities, and interests. Maintain accurate and complete student records as required by laws or administrative policies. Assign and grade class work and homework. Prepare and administer written, oral, and performance tests and issue grades in accordance with performance. Conduct classes, workshops, and demonstrations to teach principles, techniques, or methods in subjects, such as basic English language skills, life skills, and workforce entry skills. Observe and evaluate students' work to determine progress and make suggestions for improvement. Establish clear objectives for all lessons, units, and projects and communicate those objectives to students. Instruct students individually and in groups, using various teaching methods, such as lectures, discussions, and demonstrations. Guide and counsel students with adjustment or academic problems or special academic interests. Prepare materials and classrooms for class activities. Observe students to determine qualifications, limitations, abilities, interests, and other individual characteristics. Prepare objectives and outlines for courses of study, following curriculum guidelines or requirements of states and schools. Register, orient, and assess new students according to standards and procedures. Review instructional content, methods, and student evaluations to assess strengths and weaknesses, and to develop recommendations for course revision, development, or elimination. Establish and enforce rules for behavior and procedures for maintaining order among the students for whom they are responsible.