Since user engagement is a variable that we cannot predetermine, we instead use active learning techniques to apply those interactions (where they exist) to the improvement of the algorithm.

因为用户的参与度是不可预计的，所以我们使用了另外一种方式，我们使用主动学习技术，通过分析用户的交互信息来对算法进行提升。

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Each strategy represents a different type of interactive learning activity. They target known conceptual difficulties and promote active intellectual engagement.

每一个教学策略代表一个不同类型的互动学习活动，目标是解决已知的概念难题，促进积极动脑参与。

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Constructivist view of learning has meaning making at its core. It emphasizes students' engagement in active, intentional, authentic, reflective and social-dialogical learning.

建构主义学习观的中心是意义建构，它强调学习的积极主动性、目标指引性、任务真实性、不断反思性和互动合作性。

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So, for Professor Broadfoot, the key ingredients of good teaching included: creating an atmosphere of mutual respect and fairness in the classroom, providing opportunities for "active learning" and humour to encourage pupil engagement, making learning interesting, and explaining things clearly.

BBC: NEWS | UK | Education | What makes a good teacher?

The term "service learning" has emerged to describe programs that build community service into the school curriculum, thus combining active engagement in meeting social needs with academic reflection on the experience.

UNESCO: II Part Analytic Section