[lemma=and] [□] □ □ □
[lemma=and] [□=□] □ □ □
[lemma=and] [!□] □ □ □
Before the students leave the class , they are required to write in their own words what they now understand and to explain their understanding to someone else in the group . This broad exposure to the liberal arts encourages students to think critically and creatively , to develop their powers of written and spoken expression , and to deepen their understanding of moral and ethical issues .