摘要
The principal objectives of IESO,the flag-ship activity of the International Geoscience Education Organisation(IGEO;www.geoscied.org),are to raise higher secondary school students’interest in earth science,to enhance earth science learning of students,to improve teaching of earth science in schools,to forge friendship among young learners from different countries and to promote international cooperation in exchanging ideas and materials about earth science and earth science education.
