In Hong Kong, the issue of teaching Chinese as a second language (CSL) to school children is receiving considerable attention in recent years due to the trending proportion of CSL students in classrooms. While the Hong Kong Government encourages the integration of these students into mainstream schools in which the medium of instruction is predominately Chinese, the inadequate support provided puts these school aged children in a disadvantaged position. In light of this, there is a need of developing effectual interventional strategies to support the CSL learning of these students at preschool, primary and secondary levels. This chapter introduces a new support mode, the Dynamic Enrichment Learning Mode (DELM), which has been specifically developed for an intervention programme for promoting CSL students’ proficiency in Hong Kong kindergartens. Pre-test and post-test data were collected from 146 CSL kindergarteners aged 4 to 5 years who received DELM activities (DELM group) and compared to that of 110 CSL kindergarteners of the same age group who learned Chinese by merely learning in an immersion setting (immersion group). Findings show that the DELM is more effective in promoting CSL kindergarteners’ overall Chinese proficiency levels when compared to an immersion setting. Copyright © 2023 The Author(s), under exclusive license to Springer Nature Singapore Pte 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,