Cross-Curricular ICT

As ICT Co-ordinator for my school as well as the Head of ICT, it is my responsibility to ensure standards in ICT across the school.  So often I see a piece of work done by a child in year 9 which is way below what that child does in my lesson.  I know they can create a PowerPoint with a master slide, an effective design, embedded video and audio, hyperlinks etc.  So it pains me when I see them in someone else’s lesson creating a multi-coloured back-drop with hard to read fonts and hitting enter to bring up endless tedious animation.  It’s not the teacher’s fault, it’s the child being lazy.  So how do I share with the other teacher the expectations I have of their ICT work?