Do not rely on text alone! Combine various formats to make the content more engaging and accessible to students (Horton, 2011; Clark & Mayer, 2016; Mayer, 2021):
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text (written clearly and simply);
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images, tables, graphs;
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videos;
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interactive quizzes or simulations;
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audio recordings.
Advantages of using different media:
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easier retention of information;
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increased motivation;
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adaptation to students’ individual preferences (Horton, 2011; Clark & Mayer, 2016).