Individuals with higher financial capability not only have more savings, fewer debts and better lives after retirement but also exhibit higher life satisfaction, fewer depressive symptoms and more prosocial behaviours towards others. Unsurprisingly, financial capability has been regarded as one of the most important ‘life skills’ by parents, educators, spouses, employers and the community. Therefore, integrating financial capability into formal school curricula and students’ learning journeys is important. Existing practices have emphasised the relevance of saving and spending to financial education but distinguishing between investment and speculation and sharing and donating has been gaining attention from educators. Most existing programmes, international or local, have been limited because they have focused relatively less on (a) the behavioural aspect of financial capability (e.g., how to save and how to control impulse buying), (b) the pedagogical approach to engage younger children and support their learning and (c) whether they were able to improve the financial knowledge, attitudes, behaviours and self-control and gratitude of the recipients. To date, no financial education programmes have been designed for and evaluated with primary school students in Asia, much less Hong Kong. The goal of this dissertation was to develop a programme that was comprehensive in content, suitable for younger children and effective in improving children’s financial capability in terms of their knowledge, attitudes, skills and behaviours. The programme was called ‘The 4S Programme’ because it targeted effective saving, wise spending, distinguishing between speculation and investment and sharing. The programme consisted of 10 sessions of 60 minutes, equipped with a wide range of interactive pedagogical activities, including discussion, games, role-play, case studies and experiential learning activities. The programme was also equipped with simple, take-home worksheets that involved