Add to ORKGIn teaching children, a clear understanding of the conceptual content to be taught and an understanding of the linguistic means for conveying that content are necessary for the design of the most effective teaching program. The analysis of any given text for conceptual content must begin with an understanding of the language of the text. One approach to such an understanding is a linguistic analysis of the text. Such an analysis must begin with the identification and classification of the words and structures used in the text. Some classifications which promise to be relevant to the conceptual basis of language are presented, along with criteria for the identification and classification of these suLface linguistic components of sentences. (...