Advert description
Build up the context of new material and how it links to what the student already knows from school or the real world so that the new context has a solid foundation to lay inside the brain. Then ensure a complete understanding of why something works the way it does (e.g. the equation of a line or why a chemical reaction happens etc). May involve a more in depth description than GCSE/ A Level requires but necessary to help understand something rather than just memorize it.