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Senior Member
Joined: Feb 2009
Posts: 540
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03-15-2009, 01:08 PM
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- Tier 1 words are the most basic words and are the ones that are reasonably easy to teach, usually because there is some kind of physical referent (blue, elbow, table, run). We need to spend time on them because they show up frequently and students need to know these words. It is not necessary to spend more time than is required, though, because they are easier to teach than the other two tiers.
- Tier 2 words are the mother lode of words. These are the high frequency words that are found and used across domains. Spending time teaching these words deeply, richly, powerfully....that is worth the effort. Knowing these words will have an impact on students' learning and communication throughout their lives. Words that could be considered Tier 2 words would include: difference, temperate, omnivore, exaggerate, erode. You can see that these are words that may have particular meanings in certain content areas, but they are used in a variety of ways by mature language users.
- Tier 3 words are the words that are much lower frequency words and that are very specific to one domain, usually. For example; oligopoly, marcato, lithosphere, couplet, univariate analysis. These are important words, but need to be taught within the context and subject area where they will be used.
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