In Hong Kong, the coming New Senior Secondary Information and Communication Technology (NSS ICT) curriculum highly emphasizes the complex thinking processes like creativity, critical thinking and problem solving. In this paper, we attempt to use two detailed examples to illustrate how to infuse problem solving skills into computer lessons. It means that classroom time can be spent on the thinking skill as well as on the curriculum content. [Copyright of ACM SIGCSE Bulletin is the property of Association for Computing Machinery, Special Interest Group on Computer Science Education.]