Within this framework a teacher can plan and timetable for a STEM activity with consideration of the preparation requirements, including resources for engaging in the activity and specific teaching strategies that may assist students to learn the content knowledge. The teacher may well be required to solve problems for engagement in the activity with pre-emptive thinking and making adjustments during the teaching and learning experience. Schön (1983, 1987) presents a key part of this process as reflection-in-action.