from the responses i have had from settings ofsted are not really interested in your planning they are much more interested in your intent (what you are trying to get across to the children ...your teaching ) how you are doing that (your implementation) and what that has taught the children (impact) so rather than thinking about planning around thematic days i think i would be rather thinking about what your cohort needs to learn (next steps and cultural capital)and how you are going to teach that. I think its fine to have areas in the classroom as it means you have a good range of skills out but i do sometimes think that in my setting this can restrict play , we don't seem to have a lot of transfer of items from one area to the other (like using small world in construction for instance) except of course my 2 year olds who just transport everything and dump it elsewhere!