Use a checklist
Teaching Guidance for 11-14
In drawing in the forces around a lever, encourage the pupils to think through a checklist (episode 01 of SPT: Forces topic) before placing each arrow:
Teacher: What provides the force?
Lois: My hand (the
Teacher: What is the force acting on?
Sarah: The lever.
Teacher: Where does the force act?
Eloise: At one end of the lever.
Teacher: What is the strength of the force?
Zac: XX newtons.
Teacher: How long shall we make the arrow to represent this force?
Ibrahim: Shorter than the force on the load.
Teacher: In which direction does the force act?