Possible Clues:

• What's in odd places in rarer school subjects
• All the same, these letters give a basic education
• School basics
• Elementary school fundamentals
• Are with our hour as you get taut, by the sound of it
• RRR (3, 5, 1'1)
• Repetition of letters as infant training?
• Basic learning
• Lessons to be learnt when Carreras and chums lose 10-0