Howard Gardner's theory of multiple intelligences proposes that intelligence is not a single capacity but encompasses various types including visual/spatial, linguistic/verbal, logical/mathematical, bodily-kinesthetic, musical/rhythmic, interpersonal, intrapersonal, naturalistic, and existential intelligence. This theory encourages the recognition of diverse strengths in individuals and suggests that educational strategies should cater to these multiple intelligences. It emphasizes that intelligence should not be used to label individuals or dictate learning styles, but rather to enhance learning through varied modalities.