Demand for second-language (L2) Chinese education for kindergarteners has grown rapidly, but little is known about these kindergarteners' L2 skills, with existing studies focusing on school-age populations and alphabetic languages. Accordingly, we developed a six-subtest Chinese character acquisition assessment to measure L2 kindergarteners' abilities to make associations among the forms, sounds, and meanings of 40 Chinese characters, and administered it to 173 five- and six-year-old L2 kindergarteners in Hong Kong. We found a high model-to-data fit using the two-parameter logistic item response theory model (MSsubscript infit] = 0.87 to 1.07, ps > 0.41). Of the 40 items, 36 exhibited a range of difficulty and good discrimination. Internal consistency reliability and inter-rater reliability were also high. The children scored highest in the category of meaning-sound associations, followed by mapping from meaning to form. The results demonstrate that the instrument is adequately valid and reliable for assessing L2 kindergarteners' character acquisition and imply that child L2 learners may develop abilities to map meanings and sounds prior to their development of form-related mapping. With minor modifications, the developed instrument can be used in various child Chinese L2 programs around the world. Copyright ©Sage Publications Ltd.

There is about 17,000 kindergarteners (i.e. young kids aged 3 to 6 years old) learning Chinese as a second language (CSL) in Hong Kong (HK). Previous research shows that these children’s Chinese language (CL) ability is at least 3 years behind their native Chinese counterparts while encountering difficulties in learning. It is also a challenge for the teachers to cater for such huge learning diversity, as HK kindergartens (for 3- to 6-year-olds) mainly use the theme-based approach without deliberate consideration of CL curriculum (HKEDB, 2006). Without professional training in CSL teaching, teachers have little knowledge of how to provide these students with adequate support. The present study aims to examine the possibility and effectiveness of implementing a CSL curriculum for CSL students, and how well it works with the existing theme-based curriculum. “Dynamic Enrichment Learning Mode” (DELM) was developed and implemented in six kindergartens with 131 CSL learners. This CSL-focused DELM was designed based on the Second Language Acquisition (Krashen, 1982) and CL orthographic (Leong et al., 2011) theories and comprises the following: (1) tailor-made individual (one 30-minute session every fortnight) and group (two 30-minute sessions every week) enrichment learning activities; (2) using both CSL and mainstream theme-based curricula; (3) authentic learning materials (e.g., picture books and specially written children’s songs based on the learning objectives of each unit); (4) diversified learning activities (e.g., interactive language games, matching games, free writing games etc.). CSL students learn together during the enrichment activities, and then return to their ordinary classes to learn with their native Chinese classmates to benefit from both the CSL and theme-based curricula. This enables them to immerse in a safe, comfortable environment with rich target language input while not having to separate from their Chinese counterparts. Quasi-experiments,