The hospitalized children with cancer, who met the inclusion criteria for the study, will be invited to participate. The inclusion criteria are: (1) all children should be ages 9-16 years, (2) they should be able to speak and read Chinese, (3) they should have been diagnosed with cancer for at least 2 months and be currently undergoing active treatment, and (4) they should aware of their diseases (cancer). We excluded children with cognitive and learning problems identified from their medical records.