Final answer:
The effectiveness of teaching methods for special populations varies; teach-back, video instruction, written materials, and verbal explanation can be useful, but multimodal instruction is often the most effective approach.
Step-by-step explanation:
The teaching method that is most effective for providing instruction to members of special populations can vary significantly based on individual needs, learning styles, and the context of the instruction. A teach-back method, where learners restate the material in their own words, promotes active engagement and allows instructors to assess understanding. Video instruction can cater to visual and auditory learners but might not suit everyone. Written materials offer a permanent reference that individuals can refer back to, while verbal explanation is beneficial for those who learn through listening and discussion. However, in practice, a combination of methods, often referred to as multimodal instruction, is typically most effective to meet the diverse needs of special populations.