Linguistic considerations Group members : 洪承佑 顏紹恩 黃仕昌 林長德 王冠傑 田豫台 Bilingualism Coordinate bilinguals : 1. People who learn a second language in such separate contexts. 2. They have 2 meaning systems,as opposed to compound bilinguals. Interference Both of children and adults,has focused on the interfering effects of the first language and second languages. Similar strategies and linguistic features are present in both first language and second language learning in children. Interference in adults Adult second language linguistic processes are more vulnerable to the effect of the first language on the second. Adults,more cognitively secure , appear to operate from solid foundation of the first language and thus manifest more interference. Order of Acquisition One of the first steps toward demonstrating the importance of factors other than first language interference was taken in a series of research. There were logical and methodological arguments about the validity of morpheme-order findings.