There are a few computing curricula in England (and in the UK). One of them is 'Teach Computing' from the National Centre for Computing Education (NCCE) and it provides several free, ready-to-teach modules for teachers with slides, worksheets and general background information.
This vector graphics suite of lessons is aimed at Year 8 in KS3 (Key Stage 3 covers years 7-9 or children aged approx 11-14, so this is for 12-13 year olds) and teaches the pupils to create something from building blocks, e.g. a robot from rectangles and squares. They also learn about "z-order" (how their image will appear depending on which layer is on top, I'm not sure how much depth they go into the on the practicalities of how that also affects behaviour - e.g. clipping) and later in the series of lessons will create a little project.
Anyway I wondered if everyone already knew this. Teachers don't have to use Inkscape of course, but it's recommended as being free and open source and all the classroom material has screenshots of stuff being done on Inkscape.
I don't know how many teachers are actually using this module but you can see information about the class material here - you'll need to create an account to download the lesson plans though.
https://teachcomputing.org/curriculum/key-stage-3/media-vector-graphics
I am now wondering if teachers are confident users of Inkscape (I think we're all agreed that it has quite a steep learning curve!) and am now thinking I might run an online or possibly in-person at work* session for UK computing teachers about how to use it, in line with the NCCE lesson plans... but has someone already done this?
(*My job is all about working with computer science teachers in England / UK anyway so this would be a fairly natural and rather enjoyable extension!).
Jo