‘Messed up’: This shockingly stupid math problem is definitely worthy of Common Core [pic]

Oh, fer cryin’ out loud …

Check out this mathematical abomination from — where else? — a Common Core homework assignment:

https://twitter.com/Maxicat/status/432616613649469440

We feel for the third-graders subjected to that crap. A difference of 145 is reasonable? In what universe?

https://twitter.com/waterfordwoods/status/432622884855767040

That would explain so much.

https://twitter.com/Maxicat/status/432623412679147520

According to our calculations, homeschooling parents might be on to something.

https://twitter.com/davidtopel/status/432647418077655040

No kidding.

(Thanks to @Maxicat for help with sourcing!)

Update:

Just a quick note on the “front-end estimation” method: While it has been taught for decades, it is sadly typical that a Common Core-aligned lesson plan would embrace this flawed estimation technique as a valid way to “check” that an answer is “reasonable.”

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Related:

Twitchy coverage of Common Core

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