Direct
Direct instruction is "classic instruction." The presenter (teacher) is leading the instructional process, and the material is being "directed" to the students. The classroom lecture is the method most often associated with direct instruction. Examples of other direct instruction methods are presented in the embedded image.
When the instructor is not actively instructing the students, the teacher selects and moderates the subject matter. Direct instruction may be used to prepare students for an activity that is not a form of direct instruction.
Indirect
Indirect instruction is student-centered versus the teacher-centered approach of direct instruction. Indirect instruction is utilized for a higher level of student involvement, incorporating activities such as observation and investigation.
The teacher provides the learning environment, and their role changes from presenter to facilitator, support or resource person, and evaluator, as necessary. Instruction methods include evaluation of case studies, problem-solving, reflective discussion, and inquiry.
Indirect instruction allows students to explore diverse learning activities, fosters creativity, and develops interpersonal skills.
Interactive
Interactive instruction (learning) is considered hands-on learning. The instructor turns into a facilitator rather than a presenter. Interactive learning can be used in conjunction with problem-solving, tutorial groups, laboratory groups, and cooperative learning.