A method of scaffolding and building up detailed long answer responses. I start with the Exam Question Scaffold GCSE PPT (Same for GCSE and A-Level), then get them to complete an entire scaffold for a couple of the demo questions on copies of it, giving them a time limit for each section.
In practice, I will encourage the pupils to always write a key word per available mark on every extended question they answer in the past papers after I’ve done this lesson, and query those that haven’t done key words - they soon develop the habit.
There is an additional PPT here called ‘Extended Writing Planning Tasks’ for U6 students looking specifically at Mag Fields.
For practice, I strongly recommend the excellent
https://www.tes.com/teaching-resource/a-level-physics-extended-writing-tasks-6368020
and
https://www.tes.com/teaching-resource/gcse-physics-extended-writing-tasks-6337539
by the brilliant dwyernathaniel and during exam revision phase each class will start with one of these as a Starter activity.