While the (conservative) teacher is stuck in the stone age like a check-writing troglodyte, and the three (conservative) kids can’t see past $MAD CASH$, the (liberal) student understands that checks are made out of paper, derived from trees, a natural resource. A good cartoon.
edit: Just got an alternative take I can’t resist:
One morning a teacher decides to give her students a math lesson using a real-world application: balancing a checkbook (which she does because math scores have plummeted in the district due to the GOP governor’s evisceration of the public school system in favor of charter schools and vouchers. She would plan a more relevant, interactive lesson but the school’s funding has been cut, and her union dissolved)
The conservatives, upon seeing the checkbook, think of nothing but money. One particularly bright student realizes that this is “YOUR Checkbook”…a public school teacher with even the meagerest trapping of personal wealth is an affront to the system! He immediately plots to conspire with the local bank to write bad checks in her name, then split the overdraw fees when the checks bounce.
The liberal, meanwhile, appreciates his teacher and recognizes that people who are still willing to educate the children of America (even the children of conservative shitheads who rob and demonize them) are a truly precious natural resource. He will get beat up for being a “teacher’s pet” at recess.