LEA home tuition did not go well today.
DS1 on 3rd tutor in 2 months. 'Threatened' to find another tutor today - long story!
Anyway, they are doing grammar - I had to hang around to listen to the lesson (mopped the kitchen floor and cleaned the cupboards so I could listen without it being obvious). Nouns. He is very confused but scored understanding as 8 on a scale of 1 to 10 (it turned out he didn't know the answer - he only knew what 1 and 10 meant). He then said to me (after the tutor had left) 'it's still an 8 but I only understood half of it'
He also said that the tutor had got it wrong - the part she said he didn't understand he did and vice versa.
Any tips gratefully received - either on dealing with a touchy tutor or teaching grammar. 
TIA