This article reports on a project which involved enabling teachers in Hong Kong primary schools to use an online integrated learning environment (ILE) to design lesson plans to cater for students with different learning abilities. Teachers explored ways of using technology to enhance student learning. A case-study approach was used to collect data on individual teacher developments and document evolving classroom teaching strategies. The findings revealed that when using the ILE teachers were able to: (1) effectively design and create lessons which catered for different ability groups within the class; (2) employ varied teaching strategies to cater for different learning needs of students in the class; (3) shift from more traditional pedagogical approaches to embracing learner-centred principles which achieve a higher degree of classroom interaction; and (4) collaborate with others, discuss their feelings more honestly, evaluate and reflect on their own practice. (Contains 3 figures and 6 tables.)