摘要：This study was conducted to examine the effects of mathematical activities with online mathematical contents on children's arithmetic development and atudes toward mathematical activities. Pre- and post-tests were administered to 62 5-year old children. Differences of children's arithmetic development level and atudes toward mathematical activities were found between the experimental group using online mathematical contents and the control group using ffline mathematical contents. All findings proved that online mathematical contents were efective and had positive influences on children's arithmetic development and atudes toward mathematical activities. This supports the proposition that online mathematical contents can provide an important means to the improvement of children's mathematical development and atitudes toward mathematical activities..
