Reading comprehension is the ability to understand, interpret, and draw meaning from written text. At its most basic level, it involves identifying the main idea of a passage, recalling key details, making simple predictions, and connecting what is read to prior knowledge. Comprehension is the ultimate goal of reading -- decoding and fluency are means to this end. It requires both the ability to read the words and the background knowledge and vocabulary to make sense of them.
Teach active reading strategies: visualizing (making mental pictures), questioning (asking "I wonder why..."), summarizing (retelling the main points), and connecting ("This reminds me of..."). Use graphic organizers to map story elements (character, setting, problem, solution). Start with short, engaging texts and gradually increase length and complexity. Think-alouds -- where the teacher models their own comprehension process -- make invisible thinking visible.
You already know from reading fluency that decoding — translating printed letters into sounds and words — is a necessary foundation for reading. But fluent decoding is not the same as understanding. Reading comprehension is the goal that decoding serves. Think of it this way: a child who can read every word in a passage about the water cycle aloud without errors has decoded successfully. Whether they understand what they read is a separate question entirely. Comprehension is where reading becomes *thinking*.
The most useful model for understanding this is the Simple View of Reading: comprehension = decoding × language comprehension. Both factors are necessary, and a weakness in either limits the product. A child who decodes poorly cannot comprehend even texts whose content is within their intellectual grasp. A child who decodes fluently but lacks background knowledge or vocabulary will decode the words accurately and still not understand what they mean. This is why a student can read a passage about the Ottoman Empire fluently and still comprehend almost nothing — the words are decoded, but the concepts behind them are opaque. Reading comprehension instruction must therefore build both fluency *and* the background knowledge and vocabulary that make decoded text meaningful.
Identifying the main idea is the foundational comprehension skill — but it is harder than it appears. A main idea is not simply the topic (what the passage is about) or the first sentence (which may be an attention-getter rather than a summary). The main idea is the most important claim the author is making about the topic. Teaching children to distinguish topic from main idea, and main idea from supporting details, builds the hierarchical text structure awareness that underlies all higher-level comprehension. A graphic organizer that places the main idea in a box at the top, with supporting details in branches below, is not just a cute visual — it is training children to see texts as structured arguments rather than lists of sentences.
Making predictions while reading is both a comprehension strategy and evidence that comprehension is happening. When a reader predicts what will happen next — based on what they know about the genre, the characters, or the pattern of events so far — they are actively constructing a mental model of the text and monitoring whether new information fits it. A prediction that turns out to be wrong is not a failure; it is a signal that something unexpected happened, which is precisely the moment when comprehension deepens. Teaching children to stop before turning the page and ask "What do I think will happen next? Why?" trains this prediction habit explicitly. It also makes rereading natural: when a prediction fails, the motivated reader goes back to find where their model went wrong.
The deepest insight in early comprehension instruction is that comprehension is active construction, not passive reception. Skilled readers do not simply receive a text's meaning — they build a mental model, filling in information the text implies but doesn't state, connecting new information to prior knowledge, adjusting the model when new evidence contradicts earlier inferences. This mental model-building is invisible, which is why think-alouds (where the teacher narrates their own comprehension process while reading) are so powerful: they make the invisible process visible, giving students a model to imitate. The strategies — visualizing, questioning, connecting, summarizing — are not tricks. They are prompts to engage the model-building process that skilled readers do automatically.