The Common Core State Standards emphasize the value of teaching students to engage with complex text. But what exactly makes a text complex, and how can teachers help students develop their ability to learn from such texts? The authors of this article discuss five factors that determine text complexity: vocabulary, sentence structure, coherence,…

This article discusses how text variables interact with reader, strategy, and task variables to affect readability, including text coherence, text organization, signaling, and text structure. It considers how classic readability formulas, in concert with consideration of text, text reader, and strategy variables, can be used to match texts to…