[ Words & Wordplay ] Open Question : Is this paragraph grammatically correct?

I prefer to get answers from english native speakers Are you looking for a school place for your child at Saint Paul Primary School? If the answer is yes, don?t miss out this annual event. Saint Paul Primary School is organising an open day on Saturday 25th November from half past eight in the morning to half past three. During the open day parents are able to visit the classrooms and other school premises. Teachers and pupils will show you round and talk to you about our school. At eleven o?clock you are invited to hear a talk by the head of school. For more information please call us on 56454343

Source: http://answers.yahoo.com/question/index?qid=20121027075856AAoGM5A

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