DAVID GREENE, HOST:

Good morning. I'm David Greene. Joe Dombrowski, a Michigan elementary school teacher, gave the hardest spelling test ever. He posted a video of himself going over answers. One word with spee-koo (ph).

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JOE DOMBROWSKI: S-P-E-E-K-U-Z-S-L-M-N - there's silent letters at the end of that one.

UNIDENTIFIED STUDENT #1: What?

DOMBROWSKI: Yep.

GREENE: Terrifying until number 11.

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DOMBROWSKI: Number 11 is...

UNIDENTIFIED STUDENT #2: What?

DOMBROWSKI: ...April Fools - because this is an April Fools' joke.

GREENE: It's MORNING EDITION.

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UNIDENTIFIED STUDENT #3: It's not even April. Transcript provided by NPR, Copyright NPR.