Subject: Re: Increased Screwing of Working Class by Banks
"I taught middle school math for a trimester. In addition to the standard curriculum, I would do exercises involving personal finance and investing, including balancing a check book, (dating myself here,) and calculating the cost of buying on credit without payment in full monthly."

GOOD for you! That was valuable practical education!
In 1963, I was taught to write a check--only. Preparing me to be a good consumer.
LOL
IMO we should be teaching middle student pupils the power of compound interest. I did not learn that until my university education. And sadly I did not utilize that information until I was 30! I was a good little conspicuous consumer until then.