Tiered Vocabulary: Narrowing Your Instructional Focus (2024)

Understanding tiered vocabulary

One of the ways we decide which words to teach is by using the tiered vocabulary concept developed by Dr. Isabel Beck. Beck thinks of vocabulary words as belonging to one of three categories:
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• Tier 1 words are basic words that students typically know, unless they are an ELL, and in that case they may need to be taught that word. Tier 1 words include: computer, sunlight, coffee, sleep, etc.
• Tier 2 words are those that are often used in classrooms and extend beyond one particular subject area, including: analyze, tweak, estimate, determine — words in that academic arena.
• Tier 3 words are highly specific for each content area, and are housed within a particular subject. Examples of Tier 3 words include: parabola, hypotenuse, simile, monarchy, osmosis, etc.

While it is interesting to group words into these three categories, how does this practice impact our instructional decisions?

Narrowing your focus

When designing lessons and prioritizing instructional time, it may be helpful to consider which tiers and key terms are worthy of classroom instruction.

As we can see above, Tier 3 words are easy to identify; these are the words that we need to teach in order for students to understand a particular concept. For example, in an ecosystem unit of a Living Environment course, words such as “abiotic” and “biotic” are Tier 3 words that are necessary terms in the unit; they are the specific words used to identify non-living or living parts of an ecosystem. In a sense, Tier 3 words are easy to determine in a curriculum because they are entwined with concepts in a particular unit.

Tier 2 words, however, are often not taught explicitly since the assumption is that students already know what they mean. It’s the Tier 2 words that need extra attention in our classrooms. These are the words to spend time teaching and modeling for your students. What this looks like will vary depending on your grade level and content area.

Modeling for your students

Consider a Tier 2 word such as analyze. Most students are familiar with that word by the time they reach middle school, but what does it really look like in math or science or English?

When students are asked to analyze a text, it’s helpful for teachers to model this work, demonstrating the pieces of a text analysis and sharing the tools students need to analyze a text on their own. Think about all the steps that are imperative for analyzing a text. If I were modeling how to analyze a passage, I might:

• Demonstrate how I reword the passage in a way that makes sense to me, or paraphrase what the passage means
• Consider any striking or interesting features of that passage that make me think or wonder a bit more. (Here I have to check myself that I don’t get too far off on a tangent! I have to script this or else it becomes a bit too unwieldy… ).
• Try to position that particular passage with another passage earlier in that text, or with another text
• Synthesize my analysis by explaining what I find significant about the passage and why

Analysis can change shape depending on the class — in science, analyzing lab data might look different from analyzing a passage in English. But in both cases, dedicating instructional time to demonstration of the term will help strengthen students’ skills, giving students access to academic thinking and language.

Tiered vocabulary can help you classify key terms for your grade level and content area, and as a result, make instructional decisions that hone in on teaching new or unfamiliar words for your students. Finding a balance between content-specific, Tier 3 words and more general academic terms like those in Tier 2 can help narrow your focus and increase student comfort with the words they encounter in your classroom.