I reject the notion that human beings have a single intelligence, which can be drawn on for the full range of problem solving.

It may well be easier to remember a list if one sings it (or dances to it). However, these uses of the 'materials' of an intelligence are essentially trivial. What is not trivial is the capacity to think musically.

When speaking to parents, I encourage them to take their child(ren) to a children's museum and watch carefully what the child does, how she/she does it, what he/she returns to, where there is definite growth. Teachers could do the same or could set up 'play areas' which provide 'nutrition' for different intelligences... and watch carefully what happens and what does not happen with each child.

When a child is thriving, there is no reason to spend time assessing intelligences. But when a child is NOT thriving - in school or at home - that is the time to apply the lens of multiple intelligences and see whether one can find ways to help the child thrive in different environments.

Education is at a turning point

Don't assume that the way that one searches and researches is the same from one era to another - it isn't. In the 19th century, most research was done by amateurs: either individuals who were rich or individuals who had a day job. In the 20th century, most researchers worked at universities or think tanks and received money from the government or from foundations to pursue their work. In our time, the sources of support and the locations for research may be quite different.

Intelligence is the ability to find and solve problems and create products of value in one's own culture.