In BC we don't have useful geographic COVID breakdowns to e.g. guide schools protocols or direct targeted extra resources. But we can (somewhat perversely) turn this around and use kids as an indicator for community spread. 
However, this map is not normalized by (children) population, so here is the children density for reference. Part of the Surrey hotspot in Newton is explained by children density, but there is more than just that going on there.
And children don't necessarily go to school close to where they live, but most do. A better way to do this would be to normalize each school by their overall enrolment, but matching exposures to enrolment data using names is messy and takes a lot of time and I am lazy.
On the exposure map, each dot is an exposure notice. I jittered the dots a bit so that schools with lots of exposure notifications look like small clusters of dots. I grabbed the exposure data from the excellent BC School Covid Tracker: bcschoolcovidtracker.knack.com/bc-school-covi…
This could be refined, but BC should just release neighbourhood level covid data. Or by Forward Sortation Area, which is trivial to do. After all, we are already releasing much more privacy-invasive school exposure notifications or individual store/business exposures.
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