Developmental Science Lab is based at the Psychology Department, the University of Hong Kong. Over the years, the Lab members have been actively engaged in various basic and applied research projects funded by the RGC, Quality Education Fund, Language Fund, and the Hong Kong Jockey Club Charity Trust. Most of the projects are related to language, reading, mathematics development, and developmental disorders. In recent years, the Lab has also investigated the genetic and environmental contributions to language and reading development, and the connection between language impairments and reading disability in Chinese. Some standardized assessment tools and instructional curricula have been developed based on these research findings. This has exemplified how good science can help us meet real-world challenges.