When I was a Webelo leader back when my sons were young I taught my young Webelos how to do this. (Yes, I do like saying Webelo.)
I had to look up "Webelo". 1970s I was a Cub Scout leader (~= 8yo to ~= 11yo) so your Webelos would be at the age when they were just getting to have an attention span slightly greater than a goldfish and could follow at least two sentences of an explanation -- then we had to hand them over to the Boy Scouts. We never did any map & compass work at that age although I was very keen on map-reading, but they couldn't have absorbed it 🙁
Webelos is a transitional group between Cub Scouts and Boy Scouts. I guess the idea was that that age group is a bit more mature than Cub Scouts, but aren't quite ready for Boy Scouts.
I don't recall what was in the actual manual. I wasn't always by the book and had a tendency to sprinkle things into our activities that I enjoyed. So, sometimes we did things like map and compass work, mostly for my own enjoyment.
In Canada we had Beavers, Cubs, then Scouts. By the time we’re in Scouts, most us us were getting less interested in navigation and more interested in beavers…