1/9 - “In the second wave we acquired much more evidence that schoolchildren are almost equally, if not more infected by SARS-CoV-2 than others.”

2/9 - “The problem is not that schools are unsafe for children,” Mr. Boris Johnson said last week. “The problem is schools may nonetheless act as vectors for transmission, causing the virus to spread between households.”
3/9 - “An antibody survey conducted by researchers in Geneva in May and December, using thousands of random samples, found that children of age 6 to 18 were getting infected as often as young adults. The study has yet to be peer reviewed.”
4/9 - “One reason for this: The Swiss city’s schools have been open since the summer, while restrictions have been placed on adults, meaning schoolchildren played a bigger role in transmitting the virus during the autumn surge.”
5/9 - “In Austria, a nationwide survey by universities and medical institutes found that children under 10 showed a similar rate of infection to those between 11 and 14, and that the children in general were getting infected as often as teachers.”
6/9 - “Scientists also point to data from the U.K. which conducts a weekly random survey of the population. Just before the Christmas break, when schools were still open, the positivity rate among children was higher than in most adult groups, especially in those older than 11.”
7/9-“In Germany, researchers found that a majority of some 40 cases at a school in Hamburg in Sept were likely linked to a single person,which some scientists say highlights the risk of schools becoming #COVID19 clusters. Still, many policy makers in Europe say schools are safe.”
8/9 - “In France, which managed to curb infections while keeping schools open, PM Jean Castex ordered a nationwide 6 p.m. curfew but said it was a fundamental goal to keep schools open. FR is now imposing stricter rules for school canteens, and stepping up testing in schools.”
9/9 - “Austria, one of the first European countries to shut schools in November, plans to reopen them gradually from Jan. 25, but in staggered systems and with millions of test kits distributed to reduce the risk of infection.”

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When the university starts sending out teaching evaluation reminders, I tell all my classes about bias in teaching evals, with links to the evidence. Here's a version of the email I send, in case anyone else wants to poach from it.

1/16


When I say "anyone": needless to say, the people who are benefitting from the bias (like me) are the ones who should helping to correct it. Men in math, this is your job! Of course, it should also be dealt with at the institutional level, not just ad hoc.
OK, on to my email:
2/16

"You may have received automated reminders about course evals this fall. I encourage you to fill the evals out. I'd be particularly grateful for written feedback about what worked for you in the class, what was difficult, & how you ultimately spent your time for this class.

3/16

However, I don't feel comfortable just sending you an email saying: "please take the time to evaluate me". I do think student evaluations of teachers can be valuable: I have made changes to my teaching style as a direct result of comments from student teaching evaluations.
4/16

But teaching evaluations have a weakness: they are not an unbiased estimator of teaching quality. There is strong evidence that teaching evals tend to favour men over women, and that teaching evals tend to favour white instructors over non-white instructors.
5/16

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