A member of our Science team (secondary school) is off sick and between us we've covered the KS4 and 5 classes as far as possible, but the younger ones are being covered by a long term supply teacher.
He whinges a lot about behaviour, is late to lessons, and equipment from our labs gets ruined or lost under his supervision, but this seems par for the course.
However, I have noticed that his 'marking' is atrocious. Not only is it totally pointless and perfunctory, in that it doesn't address knowledge or skills, or move the learning on (and isn't even positive enough to build relationships or confidence), or pick up on literacy issues, but it is littered with his own spelling mistakes of key subject words, alongside simple everyday words. His general punctuation and grammar is appalling. This is on every marked piece of work for every child he has become responsible for.
WIBU to highlight this in some way? I'm not HOD, and don't know if i should pass on to him to deal with rather than say something directly, but I am concerned that these errors will filter through to the students' use!