Costa and Kallick (2009) believe that there are at least 16 behaviours that are indicative of effective and efficient problem solvers
who display intelligence when faced with a problem. The 16 HOM are described by
Costa and Kallick (2009) as persisting; managing impulsivity; listening with understanding and empathy; thinking flexibly; thinking about thinking (metacognition); striving for accuracy; questioning and problem-posing; applying past knowledge to new situations; thinking and communicating with clarity and precision; gathering data through all senses; creating, imagining and innovating; responding with wonderment and awe; taking responsible risks; finding humour; thinking inter-dependently; and remaining open to continuous learning.