Maths, English or Science crash course – half day intensive for each morning of the week. For example, recently an ex-marine spent a crash course on physics GCSE as a foundation to a commercial flying course. A lady is also improving her written English for promotion.
Some pupils take lessons during the holidays only, as a way on improving knowledge – eg. for 11+, maths, GCSE etc.
Others cram prior to exams and ease off during less pressured times.
One or two consecutive hour lessons for the After School Study Club and/or Saturday School. For example, some pupils take a group lesson and a one to one during the week. Others are happy with single sessions during the week or on the Saturday.