Practice needs feedback, but a single score can hide the particular skill you are trying to develop. Choose one aspect of the work to observe in detail.
For a fictional presentation, the question might be whether a learner can explain the example after the session. For a written guide, it may be whether the instructions preserve the necessary sequence. An overall rating provides less direction than seeing where understanding breaks down.
Keep an example
Save one representative attempt and note the correction you intend to make. Repeat the relevant part with attention to that correction. Use a suitable reviewer where your own judgement cannot identify the weakness reliably.
Avoid comparing attempts made under very different conditions as though the score captured the whole difference. Record the context that matters.
At review, describe what became clearer, more accurate or easier to repeat. Some progress will be gradual and uneven. The purpose is to improve the work through attentive repetition. A measurement earns its place when it helps you choose the next useful practice, rather than becoming another result to defend.