In Devarim 4, where it says to keep "These Words" upon your heart, etc...isn't this the same term referring to "the TEN Words" i.e. the Ten Commandments?
I understand that the rabbis actually had the commandments recited as part of the temple service prayers, but removed them (!) replacing them with the Shema... is this correct?
It seems to me that teaching my sons to keep the Ten Words would be more in keeping with the intent of Devarim 4-6.