ICASE (International Council of Associations for Science Education) is an umbrella organisation forming a communication network for national and regional science teacher associations, science societies, science institutes, universities and others interested in science education or is sub-branches of biology education, chemistry education, earth science (geography) education, physics education.

ICASE is a non-Governmental organisation which has official relations with UNESCO. It was created in 1973 by a group of national science teacher associations who wished to interlink internationally. ICASE performs this function by means of a newsletter, a journal and organises a world conference every 3 years.

ICASE does not have individual members. It is governed by its member organizations which elect an Executive Committee currently made up of 13 members. The day to day management is handled by an ICASE management committee comprising the President, Immediate Past President or President-elect, Secretary and Treasurer.

ICASE holds a General Assembly (at the time of the world conference) at which time member organisations put forward guidelines for the operation of ICASE and elect the new officials for a 3 year period.

World STE2010, the 3rd ICASE world conference, is designed to especially cater for members of science teacher associations around the world and all who wish to network in the field of science and technology education.