在学习中学生要用到高等数学。
与其他学习方式相比较，问题解决学习中学生的认知负荷较重。
Comparing with other learning approaches, the cognitive load in problem-based learning is comparatively heavy.
合作学习中学生所扮演的不同角色，在讲解课文中承担的责任以及他们所获得的表达机会等都极大地促进了他们的课堂参与性。
The roles that students took, the responsibility for explaining part of the text on everyone and the chances offered for them to speak out all proved helpful for their classroom participation.
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