The K-W-L (Ogle, 1986) content comprehension strategy has a before-during-after structure. The K column (What do we know?), which is filled in before reading of the text begins, supports comprehension by encouraging students to brainstorm in order to activate any prior knowledge on the topic being studied. This brainstorming, in turn, may help to motivate students to learn by creating an interest or curiosity in the topic. The W column (What do we wonder?), which should be filled in before and during the reading of the text, helps the students set a purpose for reading by creating their own questions. The L column (What have we learned?), which is completed after the reading process, allows the students to summarize their learning by writing down the main ideas and important facts learned