Put up two pre-made posters of the same topic. Ask students which
poster they think is better. Then ask students to elaborate on what
makes the poster better or worse. List these suggestions on the blackboard.
try to at least get students to mention the idea of font size, neatness,
color, layout, titles and including your name.
Then, ask students what would make the "better" poster
even better. List these ideas on the board. (Examples may include
using more colors, adding a background, etc)
Ask volunteers to tell some ideas that they have for their own environmental
posters.