How do bilingual Turkish children develop their mother tongue knowledge in German kindergartens and what are some of the difficulties they face? These are the questions which this paper tries to answer. For this purpose, a study with Turkish kindergarten children from Berlin, Germany was conducted. A total of 40 children were divided into two groups between 3 and 6 years old and tested twice in a year with the TEDIL Test . The test consists of pictures and measures the knowledge of Turkish nouns, verbs, adjectives, prepositions, and syntax. All of the children were tested individually by a native Turkish speaker and by the researcher. The testing was done in the kindergarten setting. The results showed that the knowledge of both age groups on different grammatical categories in Turkish was equal on the first test and there were no statistical differences. However, during the second test the group of older children showed a decrease in their knowledge of the grammatical categories in their mother tongue. This paper discusses the factors that influenced the regression in the knowledge of Turkish. This study is one of only a few on bilingual Turkish children and it presents new information about mother tongue loss among kindergarten children, discusses the reasons, and suggests that kindergartens and families should cooperate and work together in order to prevent mother tongue loss from a very early age as well as its effect on the cognitive development of bilingual children.

中文翻译：

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柏林土耳其移民儿童的母语：做还是不做？

土耳其语双语的孩子如何在德国幼儿园中发展母语知识，他们面临哪些困难？这些是本文试图回答的问题。为此，对来自德国柏林的土耳其幼儿园儿童进行了研究。总共40名儿童被分成3至6岁的两组，并每年进行TEDIL测试两次。该测试包括图片，并测量土耳其语名词，动词，形容词，介词和语法的知识。所有儿童均由一位土耳其土语和研究人员分别进行了测试。测试是在幼儿园进行的。结果表明，在第一次测试中，土耳其语中两个不同语法类别的年龄组的知识是相同的，没有统计学差异。但是，在第二次测试中，年龄较大的儿童对母语的语法类别的了解有所减少。本文讨论了影响土耳其知识回归的因素。这项研究是少数几个使用双语土耳其语的孩子之一，它提供了有关幼儿园儿童中母语流失的新信息，讨论了原因，并建议幼儿园和家庭应该合作并共同努力，以防止母语流失。年龄及其对双语儿童认知发展的影响。在第二次测试中，年龄较大的儿童对母语的语法类别的了解有所减少。本文讨论了影响土耳其知识回归的因素。这项研究是少数几个使用双语土耳其语的孩子之一，它提供了有关幼儿园儿童中母语流失的新信息，讨论了原因，并建议幼儿园和家庭应该合作并共同努力，以防止母语流失。年龄及其对双语儿童认知发展的影响。在第二次测试中，年龄较大的儿童对母语的语法类别的了解有所减少。本文讨论了影响土耳其知识回归的因素。这项研究是少数几个使用双语土耳其语的孩子之一，它提供了有关幼儿园儿童中母语流失的新信息，讨论了原因，并建议幼儿园和家庭应该合作并共同努力，以防止母语流失。年龄及其对双语儿童认知发展的影响。