1. Find a picture of whatever you want to make bigger. It helps if the view is not from the side but completely frontal.
2. Adjust the projector until the object is the right size for your project. In our case, this was poster-sized.
3. Tape or sticky tac the poster, bulletin board paper, or whatever you are drawing on to the wall or board.
4. Trace.
5. Repeat.
To see more history poster projects, click here.
We used an old-fashioned overhead projector, a Sharpie, paint, and wall paper border to make this large wall map.