The phrase "an initial instruction" is correct and usable in written English.
You can use it when referring to the first set of guidelines or directions given for a task or process.
Example: "Before we begin the training session, please review an initial instruction that outlines the objectives."
Alternatives: "a preliminary guideline" or "a first directive".
Phase 1 initial instruction phase: The initial instruction phase was used as a semi-structured PP situation (Stoyanova and Ellerton 1996), which was characterized by an initial instruction (seed) by the teacher.
After the provision of an initial instruction in the target language, a range of supports were available to guide them in their completion of the step, should they need them.
After an initial instruction session to familiarize participants with the game controls and objectives, they played Space Fortress inside an MRI scanner with an MR-compatible joystick.
After an initial instruction period on a practice market, each participant received login details for a trading account that was funded with 100,000 virtual money units (VMU).
Whilst a client has developed sufficient trust to reward you with an initial instruction you may not have had sufficient time to embed that trust to the point where the client's expectations of you and your firm have been exceeded.
This programme is so simple that patients can follow it on their own after a short initial instruction, and its cost is negligible.
Therefore, the teacher can provide detailed instruction on a particular step that most students have been working on for a long time and give initial instruction on the next step to all students.
Regular supervision of the exercise training will result in a larger effect compared with initial instruction only.
As was common of professional musicians in the early modern era, Settimia Caccini was born into a musical family and received her initial instruction in voice and composition from her father, the famed singer and composer Giulio Caccini.
A cognitive dissonance emerges from this initial instruction.
It is not clear whether such a large gap in time between initial instruction and skills testing may have affected testing performance, except that good performance could indicate good retention.
