The phrase "master instructor" is correct and usable in written English.
You can use it to denote someone who is an expert in their field of instruction and is considered a mentor or authority in the matter. For example, "Karen is a master instructor in the field of voice training."
"I couldn't believe it," said Ms. Lippin, a master instructor at Real Pilates, a studio in TriBeCa.
He re-emerges with a sensei — a master instructor — and a new name, Kiyoi, a mispronunciation of his pre-Westernized surname, Sei-I.
Free diving, in which Ian is a master instructor, involves descending on a single breath, without apparatus, to depths of up to 253 metres, which is where the current world record stands.
I am always fascinated by this type of challenge – I am a master instructor for self-defence and have tried different ones before, including breaking bricks with my head.
"Like an artist in training who learns to reproduce exact replications of Van Gogh's Starry Night, beginning yoga instructors can copy a master instructor they admire.
Vernon Low, 6th dan, was the Rhee Taekwon-Do State Master Instructor of South Australia, was the first Rhee Taekwon-Do instructor promoted to 5th dan, and had been ranked at 4th dan as early as 1974, prior to establishing his own school.
The planned timetable for the project, from May 2013 to June 2014, took account of the academic year, national holidays, school curricula and examination schedules and the availability of F-MARC master instructors to deliver the teacher training courses.
Language was not an issue during the larger second round of cascade-training courses, as the 22 local teachers who had implemented the programme during the first stage, presented these courses with the support of experienced Spanish/English-speaking master instructors.
For the first stage of the implementation, two F-MARC master instructors (1 male, 1 female) delivered a 5-day training course to 22 male and female teachers; these teachers received instruction about the philosophy, structure, content and delivery of the 'FIFA 11 for Health' programme and the implementation of the data collection instruments.
Mr Turner said it would be open to the public and use PADI-qualified dive-master instructors.
Traditionally, would-be instructors learn from a master teacher.
