A fed-up Painesville, Ohio, father showed his frustration over his child's fourth-grade Common Core math curriculum by writing a check that no bank could possibly cash.
Instead of a dollar amount, Doug Herrmann used a cryptic series of "X's" and "O's" accompanying eight boxes with more "O's" to indicate the amount of the check.
The confusing series of letters is in line with the controversial Common Core long-form math curriculum that is implemented in 46 states. Indiana, Minnesota, Oklahoma and South Carolina have refused to adopt the curriculum.
Officials at Melridge Elementary will likely have to teach the bank teller how to calculate the cash amount using the Common Core method if they actually want to cash the check.
Check-mate, Mr. Herrmann!
UPDATE: Herrmann told "Fox and Friends" Wednesday that he didn't actually send the check to the school.
He said he wrote it to replenish his son's school lunch account the morning after helping with him with his Common Core math homework.
"I ended up giving him my last twenty and ripped up the check and threw it away. It was a joke and I took a picture and put it on Facebook and boom, blew up the internet," said Herrmann.
Overall, the dad said he's shocked at how confusing second-grade homework has become.
"I can't help my second grader and my first grade daughter with their math homework, and it's very frustrating," he said.
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