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I made my professional student learning goal about improving students’ knowledge of science vocabulary.

The goal focused on science because the two science teachers I worked with wanted to collaborate on it. Vocabulary instruction was not new to me, and it was not something I used only in science. I also used context clues and other vocabulary strategies with students in ELA.

After the first round of science vocabulary pre- and post-tests in both sixth and eighth grade, I was not seeing any real improvement.

That concerned me for several reasons. I was anxious about meeting my professional goal, but I was more concerned that students were not retaining the vocabulary they needed to understand the content. I also wanted to know why strategies that had worked in the past did not seem to be working anymore.

That question led me to look more closely at what students were doing when they encountered an unfamiliar word.

The Definition Was Easy to Find

Students now have almost immediate access to definitions and answers.

I started using Classwize, our classroom monitoring program, to see what students were doing on their computers. When they encountered an unfamiliar word, many opened Google, searched for the definition, and copied and pasted the first answer they found.

Technically, they had completed the assignment. The definition was on the page.

That did not mean they understood the word or would recognize it the next time they encountered it.

The speed of the process was part of the problem. Students could move from the question to a completed answer without spending much time thinking about the word. They did not necessarily connect it to the concept, examine how it was used, or put the meaning into language they understood.

Google was doing exactly what they asked it to do. It gave them a definition. The problem was that finding a definition and learning a word are not the same thing.

Why Knowing the Definition Is Not Always Enough

Knowing a word requires more than memorizing one sentence from a dictionary.

In science, students need to understand how the word connects to a concept. They may need to recognize it in a diagram, investigation, discussion, or informational text. They may also need to use it when explaining evidence or describing what happened during an experiment.

Consider a word such as density. A student may copy a definition involving mass and volume without understanding why one object floats and another sinks. The student has the words needed to complete a vocabulary question but may not understand the concept behind them.

The same problem appears in ELA. A student may copy the definition of reluctant without recognizing that a character’s hesitation shows reluctance. Students need to connect the word to what the character says, does, or thinks.

As I began exploring vocabulary research, I was reminded that word learning develops over time. One exposure, whether it comes from a teacher or Google, is rarely enough for a student to develop a strong understanding of a word.

Using Context to Slow Down the Thinking

One way to interrupt the search-and-copy routine is to ask students to examine how an unfamiliar word is being used before looking it up.

Vocabulary in context means using the surrounding sentence, paragraph, image, diagram, or example to develop an initial understanding of a word.

Students can look for:

• A definition provided in the text
• A nearby example
• A synonym or related word
• A contrast
• A description of what happened
• A diagram, caption, or photograph
• Information from the sentences before and after the word

For example:

The solution became opaque, preventing the scientist from seeing through the liquid.

A student may not know the word opaque, but the rest of the sentence provides useful information. If the scientist cannot see through the liquid, opaque probably describes something that is not transparent.

The same thinking can be used in ELA:

Marcus was reluctant to enter the abandoned building. He remained on the sidewalk while his friends went inside.

The second sentence shows that Marcus hesitated and did not want to enter. Students can use that information to develop an initial understanding of reluctant.

They can still confirm the meanings afterward, but they approach the definitions with ideas already forming.

Context Clues Do Not Always Give Students the Whole Meaning

Context is useful, but it is not always enough.

Sometimes a sentence provides only a vague clue. In other cases, students may use the context and arrive at a meaning that makes sense but is not correct. This can be especially difficult for multilingual learners when the surrounding sentences contain several other unfamiliar words.

Consider this sentence:

The scientist observed the volatile chemical reaction.

There is not enough information in that sentence to determine exactly what volatile means. A student might reasonably guess that the reaction was dangerous, loud, or colorful.

If the next sentences describe sudden changes or an unexpected explosion, the student has more information. Even then, the context may provide only an approximate understanding.

Students need to know that using context clues does not mean making a quick guess and moving on. It means looking for evidence and deciding whether the possible meaning fits.

Context Is One Part of the Process

Determining the meaning of an unfamiliar word may require more than one strategy.

Students can also examine:

• Prefixes, roots, and suffixes
• Their background knowledge about the topic
• Related words they already know
• Illustrations, diagrams, and captions
• A glossary or dictionary
• An explanation from a teacher or classmate

Looking up a word is not the problem. Dictionaries, glossaries, and Google can all be helpful tools. The problem occurs when students copy a definition without connecting it to the text or concept.

I want students to move beyond “Google gave me this answer” and be able to explain why that definition makes sense in the passage.

That explanation tells me much more about what the student understands.

Questions That Encourage Students to Use Context

When students encounter an unfamiliar word, teachers can ask:

• What is happening in this sentence?
• What words around it might help?
• Is there a definition or example nearby?
• Does the text describe what the word does?
• Is there a contrast that gives you a clue?
• Do you recognize a prefix, root, or suffix?
• What meaning would make sense in this sentence?
• What evidence supports your thinking?
• Does the dictionary definition match the way the word is used here?

These questions require more effort than copying the first search result. They also give students a process they can use when a teacher is not sitting beside them.

An incorrect inference can still give us useful information if students explain how they reached it and then return to the text to revise their thinking. The important part is that the guess is connected to evidence rather than selected randomly.

Vocabulary Needs Repeated Exposure

Using context once will not guarantee that students remember a word.

Students need to encounter important vocabulary more than once and in more than one form.

In science, a word might appear in:

• A photograph or diagram
• A demonstration
• A reading passage
• A class discussion
• A lab investigation
• A Claim, Evidence, and Reasoning response

In ELA, students might encounter and use the same word in:

• A story or informational text
• A class discussion
• A character analysis
• A vocabulary activity
• A written response
• A comparison between texts

Each encounter adds something to the student’s understanding.

A definition may provide the beginning. An image or example makes the meaning more concrete. A discussion gives students an opportunity to hear the word. Using it in a written explanation helps them practice communicating the idea.

This is different from asking students to copy the same definition several times. Repeated exposure is most useful when students encounter and use the word in meaningful situations.

What My Results Made Me Reconsider

My first science vocabulary pre- and post-test results did not show the improvement I had expected. They forced me to examine more than the activities I had assigned.

I had to consider what students were actually doing during those activities.

A completed definition did not necessarily represent learning. Easy access to Google made that especially clear. Students could produce an answer quickly while doing very little with the meaning of the word.

That does not mean technology is the enemy or that students should never search for a definition. It means I need to pay attention to what happens after they find it.

Can they explain the definition in the context of the lesson? Can they connect it to an example? Can they recognize the word in a new situation? Can they use it accurately when explaining their thinking?

Those questions apply whether students are learning about density in science or analyzing a character in ELA. They give me better information than a copied definition.

Final Thoughts

Students need to know how to find information. They also need to know what to do with it once they find it.

Teaching vocabulary in context gives students a reason to slow down, examine the surrounding information, and form an initial understanding before accepting the first definition on the screen.

Context will not teach every word, and it should not replace direct vocabulary instruction. It is one part of helping students become more thoughtful and independent readers across content areas.

It may also reduce how often students ask, “What does this word mean?” every five seconds.

That would be helpful too.

The Faodail Reflection

Finding a definition takes only a few seconds.

Understanding how the word connects to the text or concept takes more time.