It's way more than just that. Allow me to explain.
I started my school day with a reading from the Bible, a Psalm or Proverb, read by volunteers, then, we ALL stood, hand over heart and recited the Pledge, NO EXCEPTIONS!
After giving honor to God and country, we were ready to learn. We learned math, english, spelling, geography, social studies, and history.
I'm 65 + and can still add, subtract, multiply, and divide in my head, can any of the students you see today do that?