He bases his theory that people have nine intelligences that we use, but some people use certain intelligences more than others. He
first explained his theory in his book, Frames of Mind and added to it in the book, Intelligence Reframed. The nine intelligences are
verbal-linguistic, mathematical-logical, musical, visual-spatial, bodily-kinesthetic, interpersonal, intrapersonal, naturalist, and
existential.According to Gardner, the nine intelligences can be either increased or decreased by the way we use them. Gardner is a
psychologist and a professor at HowardUniversity.� Over the years, his theory of Multiple Intelligences has been used in school
systems. The teacher uses his theory to teach the students to develop certain intelligences that they are comfortable with and with
which they can grow. He defines intelligence as "The ability to solve problems, or create products, that are valued within one or more
cultural settings" (Disney Learning Partnership). The traditional definition of intelligence is the uniform cognitive capacity people are
born with. Howard Gardner's multiple intelligences were controversial because it challenged original beliefs in education and
cognitive science.