The larger the range of instructional skills, methods, strategies, and models that a teacher has at his or her command, the more skilled the teacher will be in selecting and delivering appropriate instruction, and the better students will learn. Effective teachers make use of a wide range of instructional resources. Research on instruction shows that a variety of instructional strategies and methods should be used to meet the needs of the class and the individuals in it and to achieve the goals of education. Several variables must be considered when choosing the instructional models, strategies, and methods to use in a course, unit, or lesson: objectives and content, sequence, degree of control, interaction pattern, learning style, and practical considerations. (IAH)