How would you advise a teacher that is struggling in the area of engagement?

I know there is a HUGE amount of literature on behavioural, cognitive and emotional engagement. Yes, this is the case that there are three major components, but too often we then think this is a student issue – when it is indeed a student issue, to use these three forms as part of learning. It is interesting that the correlation between these three engagement components and achievement is not that high, and indeed in upper high school (not sure if this is you or not) quite low” (John Hattie, personal communication, January 23, 2016).