Parking is on the street. It is generally 2 hours maximum, at $2.00 per hour. So it shouldn't be too bad if you come an hour or two a week times 6 weeks.
Generally you can get a parking space within a block (or two maximum) of the 511 building. Of course you can carpool or take the Max or bus if you prefer.
There is a parking lot right behind the building, but it is more expensive.