Part time to full time

[mum2all]

My friend is employed as a part time teacher and shares a class with another teacher. Friend teaches Th/Fri and other lady Mon - Wed. However, they are not job share but both on part time contracts, HR have made this VERY clear on a number of occasions. Other lady has recently got another post and will be leaving at the end of term (easter) my friend would like to increase her days (perhaps Wed - Fri for example) as DCs now at nursery/school but her HT has told her she would have to advertise additional days which my friend could then apply/interview for but no guarantee she would get them. This seems a bit unreasonable to me as surely more continuity for the class and school if my friend took on the extra days.
Any thoughts?
(We're in Scotland if that makes a difference?)

Bit of disclaimer, I don't specifically know about Scottish law.

Lots of public sector employers work under policies which require vacancies to be advertised for reasons of transparency and fairness. If that's the case, the stuff you said will go for her, but isn't necessarily the be all and end all.

Also, bear in mind that it's often easier to recruit someone for a three day week than a two day week, so the school may not want her to increase her days to three unless they are sure they could successfully recruit for her two (if you see what I mean). It would be a bit different if she wanted to go to full time, as (assuming they like her) I'd have thought she was a strong candidate.

I'm not a teacher, but I work in the civil service in Scotland - I went from 18 hours to 21 hours and then to fulltime without my job or the extra hours having to be advertised, so I don't think it automatically has to be advertised if your parttime hours increase.

But as RibenaBerry says, they may think its easier to recruit to a 3-day parttime job than a 2-day one, so be reluctant to change it. Or teaching employment law may be different from the general ones.

Thanks guys I'll pass that on. Not sure how much she'd like to increase her hours actually as she has previously toyed with the idea of going full time.