Discussions during the 1948 Convention of the American Psychological Association led Bloom to spearhead a group of educators who eventually undertook the ambitious task of classifying educational goals and objectives. Their intent was to develop a method of classification for thinking behaviors that were believed to be important in the processes of learning. Eventually, this framework became a taxonomy of three domains:
The cognitive - knowledge based domain, consisting of six levels
The affective - attitudinal based domain, consisting of five levels, and
The psychomotor - skills based domain, consisting of six levels.