From LASORS
CARRIAGE OF PASSENGERS "...unless that pilot has carried out at least three take-offs and three landings as pilot flying (sole
manipulator of the controls)..."
This is repeated many time through out the book with no exceptions for instructors (nothing found in Section H at least).
The one take-off and landing at night is not required for teaching as a pupil is not a passenger. Although if the pupil has a friend in the back then usual passenger carrying rules apply.