The truth is that Barack Hussein Obama aka "Barry Soetoro" first registered for school at the Franciscan Asisi Primary School on 1 January 1968. He then attended Asisi Primary School for 3 years before finally transfering to Besuki Primary School.
Unlike the Franciscan Asisi Primary School, Besuki would have at the time had compulsory religious classes.
"I was not raised in a particularly religious household, as undoubtedly many in the audience were. My father, who returned to Kenya when I was just two, was born Muslim but as an adult became an atheist. My mother, whose parents were non-practicing Baptists and Methodists, was probably one of the most spiritual and kindest people I've ever known, but grew up with a healthy skepticism of organized religion herself. As a consequence, so did I.”
Barack Hussein Obama - 28 June 2006
To further support this, two of Obama's classmates in Indonesia at the time one who is now the CEO of Indonesia's national airline and the other a bank manager in Jakarta remember a very different Obama, a very religious 'Barry Soetoro', one that was well versed in Islam and liked to recite his prayers.
"Barry was previously quite religious in Islam. His birth father, Barack Hussein Obama was a Muslim economist from Kenya. Before marrying Ann Dunham, Hussein Obama was married to a woman from Kenya who had seven children. All the relatives of Barry's father were very devout Muslims"
"He was often in the prayer room wearing a 'sarong', at that time, he was quite religious in Islam but only after marrying Michelle, he changed his religion."
Rony extrapolates further that Obama at one point had to change his religion if he ever intended later to run for the office of President of the United States because America would never elect a muslim to the be President of the United States.