Microteaching is useful for students of

Microteaching is useful for trainees of both primary and higher classes, since core teaching skills are common across all levels.

Skills like questioning, illustration, stimulus variation and reinforcement matter whether the class is young or advanced.

Restricting it to primary classes only is wrong, as secondary and college trainees equally need skill practice.

Restricting it to junior classes only ignores its wide use in secondary and higher teacher training.

Restricting it to 10+2 classes only is baseless, since the technique is not tied to any single stage.

Microteaching was developed by Dwight Allen and his colleagues as a scaled down, skill focused training technique.