Tutor in close contact
We had one such moment last summer.
Our 14 year old son, Aiden, submitted a maths assignment and scored 68%. This was about 20-25% lower than what he usually achieves and his Maths Tutor, picked up on it immediately*. She very politely, but firmly, told him she felt he had rushed through the module as well as the assignment and asked him to please cover the topic again before resubmitting the assignment.
He did and he scored well over 80% this time.
*I think it’s important to mention that his Tutor’s assumption was absolutely 100% correct. We were staying at a beautiful campsite in France and Aiden held his hands up and said he had rushed through the assignment as he had wanted to spend more time with his friends.