Fake Catholic Baptismal certificate

Does she have to be baptized in a Catholic Church to go to the school? Usually, Catholic Schools recognize baptisms by other churches as well, believing that once you've been baptized, you're baptized! Maybe, just her birth certificate and a baptismal certificate from your church would suffice. If not, why not have her baptized? Is it a good idea to get a fake certificate and then put her in a religious school? Children learn what they live, and she will learn it's O.K. to lie and cheat if you do this.