USING THE CORE VOCABULARY OVERLAY
ECO Manual
90
About Core Vocabulary and Activity Row Vocabulary
The Unity
®
overlays have two kinds of vocabularies stored in them, Core vocabulary and
Activity Row vocabulary. The Activity Row vocabulary is in Row 1, the top row on your
overlay. Core Vocabulary is stored in the rest of the rows on the overlay.
In general, Core vocabulary is made up of words that you use everyday to make sentences.
Pronouns, verbs and words like, "it," "and," "about," "the" can be found here. Core vocabulary is
stored under icon sequences and can be accessed with one, two or three-hit sequences.
Activity Row vocabulary generally contains single-hit vocabulary that is more specialized than
your Core vocabulary. Activities can be centered around a theme such as "School" or
"Greetings". Activities contain words that can help you create complete sentences on topics you
want to talk about.
In PRC devices, Core vocabulary is very important. Many of the Core icons and messages
are consistent throughout the Unity overlays. Once you become familiar with your Core
vocabulary you will be able to communicate easily and rapidly in any situation. For this reason
we recommend that you rarely, if ever, customize your Core vocabulary.
Core Vocabulary
Area
Activity Row
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