The state of modern education

Gah! 7yo was showing me completed homework last night. "Language arts"--which, in this case, meant matching sentence halves so the subject agreed with the verb and the sentence made sense. All well and good. Except . . .

One completed sentence was "The chicken layed an egg."

Preprinted educational worksheet. Was this approved at the school-wide level? Or was it just something the teacher found on-line and printed out to go with the lesson she wanted to teach? Either way, a glaring error like that annoys me. Greatly.

I shall be keeping a careful eye on other materials brought home. If such problems continue, we may have to consider whether we can stay on top of such errors or whether a change in school might be called for.

Oh, and 7yo will be discussing the misspelling with the teacher today. Wonder how that's going to go over.

Question on Italian word

For a proofreading job I'm working on, a travel book for Italy, with many architectural and art terms. Can someone confirm or deny that caldarium in Italian has an extra i (calidarium)?

Oddly, on-line translation dictionaries don't seem to have such words.

Many, many thanks!