Students will be measured every five weeks in math, English, social sciences, science and physical education. An A nets $50, a B equals $35 and a C still brings in $20. Students will get half the money upfront, with the remainder paid upon graduation. A straight-A student could earn up to $4,000 by the end of his or her sophomore year.
Earn an A? Here's $50. -- chicagotribune.com