WALTs (We Are Learning To), LOBs (Learning Objectives), Objectifs (in French).
They break down into outcomes, usually following the form: All, Most, Some. Thus, for example, All students will be able to identify 8 holiday activities, Most students will be able to say which holiday activity they like and Some students will be able to give a reason why they like them.
It gives a lesson focus and purpose, but can be taken too far. According to the latest OFSTED criteria, all students should be aware of what their objectives are that lesson and should be able to rattle off its aims and outcomes when asked by an inspector (at any given point in the said lesson). As a fellow teacher pointed out to me today, the mechanical and contrived way in which we are now encouraged to train the students to parrot their objective is not dissimilar to the famous Fast Show sketch, Jesse's Diets: