Okay
Then they should not be able to bully you.
I suspect they have preconceived ideas about home education, they most probably believe that it requires you to be sitting her down at the kitchen table 'teaching' her lessons from 9-3.
Of course we know that this is often the last thing many home educator would do.
With your hubby and both sets of grandparents supporting you and involved with her education, you should be able to prove that an suitable and efficient education is indeed being provided.
I would be putting together an Educational Philosophy
That's a sort of report about why you home educate in the way you do- The European Court of Human Rights says that parents have the right to educate according to your philosophical convictions-so with an Ed Phil in place, the powers that be, need to judge the education you are providing against that Ed Phil and not some school based idea of what an education looks like.
Then you need a written report of the resources you use-to achieve the education in the way stated in your ed phil, and covering other aspects of the education such as socialisation and support.
Put in there, the input both sets of grandparents have and your hubby in your daughters education.
Get out and meet other home educators and go to groups if you can-and then write that in the educational philosophy-again evidence that you are getting support with the home ed.
Normally i would be saying that 4 weeks is too early for anyone to come round asking questions-but in this case I fear they might take it further and bring in other children's services.
Further-my hubby (a former psychiatric nurse tutor) suggests you get hold of the your community nurse and give her information about home education.
If you contact me through the info@link on our local website below, I can give you our details so your nurse can talk to another experienced ex psychiatric nurse and home educator about the realities and practicalities of a Home Based Education, if this would be helpful
regards
Julie
Worcestershire Home education Network