Everyone who has commented so far that, if you started at the beginning of the year you should get paid full holiday pay is correct. The only thing to bear in mind is that the summer holiday is the one defined by the Govt and not the schools that you work at which may have different years. So, as an example, I am a secondary teacher- if I changed schools finishing term 4 I would be paid up to 26th January. If my new school started 3rd Feb, I would not get any pay up to the 3rd.
Hope that makes sense!