perhaps the general forum would have been better for this, but here goes
I used to use a vinyl battlemap (also used a black board some 15 years ago), now I use maps I print and I love a good battlemap (love making them too). So, the way we "roll" is that we use some scissors and only hand out the parts of the map the players can see - and the DM graciously supply some tape as well
We do this for the small map (5 mm = 10 feet) and thus eliminate the player mapping process. When we arrive at an encounter we pull out a printed battle map - this could be supplied with cut-outs of traps and secret doors as the players discover those
hope it helps