Firstly, I would teach to avoid getting into that type of situation in the first place.
Secondly (and we've had a rather heathed discussion about this before), I teach that a go-around is an
unintended manoeuvre so the priority is to bang on the power, stop any descent/initiate a climb and then reconfigure.
Conversely, the 'go' bit of a T&G is an
intentional take-off after a successful landing and therefore the pilot should be configuring for take-off before commencing the take off.