THE PROPOSITION ANALYSIS OF THE SERIES OF THE JUNIOR SECONDARY SCHOOL TEXT-BOOKS

It is proposition density, an important factor in texts, that plays a crucial role in text comprehension and retention. The combination of text comprehension and retention suggests that proposition density can be useful in the selection of textbooks. The criteria of compiling textbooks must have the evaluation of proposition density based on the meanings of the sentences. Currently, it is difficult to find any published studies relating to proposition density used as evaluation criteria of textbooks in Vietnam, especially textbooks on foreign languages.Therefore, the author believes that the results of this study will contribute new information to the database for compiling textbooks and the subsequent works. The research analyses, identifies and compares the proposition density through the number of meanings of sentences to show a logical evaluation in four pilot textbooks and propose directions for the compilation of textbooks in the future