What can CS educators do to help teachers of other subjects include computing in their teaching?
Every field has its own key issues and methodologies. History and Literature, for example, are very different from Computer Science.  

However, it is in the interest of those in other fields to promote computational thinking. It is a skill that their students need and it can be a tool in their own work. However, to do this two things are necessary:


First is to examine the current working practices in those other fields that use computational techniques in pursuit of their own goals. Literature, Science, Geography, History, Mathematics, the Social Sciences, all use computation for at least part of their normal work. This can be communicated to students and students can and should get practice in their use. 
Second, and harder, is that it likely requires some collaboration, up to the level of team teaching, to bring good techniques to the fore for students. In other words, we in CS need to become servants to the other disciplines to help them deal with their own questions.


Computational Thinking is a big deal in the US now. It can start very early in a kid's life. Piaget and The Montessori method took a shot at this long ago, with success. But it needs to go beyond just math, into, say, Algorithmics and Big Data.