紧急求助：
请教各位专家，在学校与家长签的合同最后，在家长签名的下面还有一段文字：
Before the undersigned Notary Public, personally appeared ___________________________________________, parents
and lawful guardians of ________________________________, who is/are personally known to me/or who produced
identification (type of ID) ______________________, and who did/did not take an oath.
Given under my hand and official seal this ____ day of ______________, 20__.
__________________________________
Notary Public
My commission expires_______________
Notary Seal
（1）这段文字是什么意思啊？
（2）这段文字是要谁填写呢？公证员吗？
（3）家长拿这个合同是到公证处做公证吗？做什么类型的公证？证明签名的是孩子的父母（亲子关系公证）？还是需要家长在公证员面前签这份合同，公证员证明这份合同的确是家长签的（合同公证）？
实在是看不懂了，请各位专家帮忙答疑解惑，在此谢谢大家！