学习者以小组形式参与话题讨论，角色扮演或解决指定问题。
Students work together to discuss the topic, role-play and solve the assigned tasks.
它有利于强化学习者自主学习的意识，促进电大教师角色的转换。
It is helpful to strengthen the consciousness of learners' autonomous study aod enhance the change of teachers' role.
并具体分析了在构建学习型图书馆的过程中，馆长应承担的四种角色，即：理想主义者，战略规划制定者，授权及学习者。
Then discusses the curator's roles in the process of building learning library, namely: as an idealist, as a constitutor of strategy and plan, as empowerment and as a learner.
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