Middle school, high school and college students in Massachusetts are invited to submit MATH POETRY in a contest sponsored by the American Mathematical Society. The submission deadline is November 11 -- and lots of background information and details for submission are offered at this link.
A pattern of yearly contests has been interrupted by COVID -- however, looking back, I find two of the winning poems in the 2020 contest posted here, and a poster of winners for the 2019 contest is shown at this link.