MSc in education for an assistnat professor in computer science What are your thoughts about getting an MSc in education while being an assistant professor? my UK university requires assistant professors to go through a number of courses, and upon completing them staff members are offerred to enrol for free in an MSc in education where they would continue to take follow up courses. 

The schedule is relaxed (around 40 hours a year), but although I am not very concerned about the time impact, I wonder if a better use of time is to write another paper or a grant application. My position and institution are research focused, and while I still need to teach a bit, the weight of research achievements is the heaviest in our promotion criteria. 

Most people find these courses boring, but I usually learn a thing or two in each course that do reinforce my teaching skills. Apart from learning a few things that would help me with teaching, I am not sure about whether it helps my academic profile; it is usually assumed that PhD holders are able to teach and I am not sure how an academic's CV with an MSc in Education + BSc/MSc/PhD in computer science is perceived like.
More important that what we think is what your university thinks and how it will impact your career. It sounds like that value it pretty highly. There is nothing magic in a PhD that makes you an adequate teacher of your subject. 

If you intend to stay at your current place and build your career there then it might be worth any effort. Likewise if you want teaching to be an important part of your academic life it has value. 

And your current place seems to require at least part of it, so, ...