PRC is excited to introduce Vocabulary Builder™ Activity Sets with the launch of Unity 2.0. There are three categories of Activity Sets: At play, At home and At school. Within each category find numerous activities. With a click of a button, temporarily limit a Unity Sequenced vocabulary to a set of words related to that activity, for example playing with bubbles. The set of words contains a variety of parts of speech such as verbs, adjectives, prepositions, and interjections. The words in each set will allow an individual to request the activity, talk during that activity, and end it. Below are support materials to be used in conjunction with each Activity Set.