ABSTRACT
Every teacher who tries out a new idea, then by various criteria judges its success or failure, has conducted a miniature piece of do-it-oneself ‘research’. Miss Marshall’s is the simplest model for ‘action research’—trying an idea out in the classroom and seeing if it appears to work. It can be, and is, used constantly by teachers in a simple way, and, at the other extreme, in a more complex manner by researchers who are specialists in innovation. The teacher-experimenter would find a person both tone deaf and amenable and try with every means in his power to achieve the maximum improvement, taking careful notes and measurements at every step. Any classroom in any school in the country can be conceived of as a practical laboratory. The more teachers can double up as experimenters, the better. Relatively large-scale testing does, of course, imply relatively large-scale use.
